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webxr-polyfill.min.js
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webxr-polyfill.min.js
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/**
* @license
* webxr-polyfill
* Copyright (c) 2017 Google
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @license
* cardboard-vr-display
* Copyright (c) 2015-2017 Google
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @license
* webvr-polyfill-dpdb
* Copyright (c) 2017 Google
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @license
* wglu-preserve-state
* Copyright (c) 2016, Brandon Jones.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/**
* @license
* nosleep.js
* Copyright (c) 2017, Rich Tibbett
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
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inverse(){if(null===this[D].inverse){let e=a(new Float32Array(16));o(e,this[D].matrix),this[D].inverse=new P(e),this[D].inverse[D].inverse=this}return this[D].inverse}}const I=Symbol("@@webxr-polyfill/XRSpace");class L{constructor(e=null,t=null){this[I]={specialType:e,inputSource:t,baseMatrix:null,inverseBaseMatrix:null,lastFrameId:-1}}get _specialType(){return this[I].specialType}get _inputSource(){return this[I].inputSource}_ensurePoseUpdated(e,t){t!=this[I].lastFrameId&&(this[I].lastFrameId=t,this._onPoseUpdate(e))}_onPoseUpdate(e){"viewer"==this[I].specialType&&(this._baseMatrix=e.getBasePoseMatrix())}set _baseMatrix(e){this[I].baseMatrix=e,this[I].inverseBaseMatrix=null}get _baseMatrix(){return this[I].baseMatrix||this[I].inverseBaseMatrix&&(this[I].baseMatrix=new Float32Array(16),o(this[I].baseMatrix,this[I].inverseBaseMatrix)),this[I].baseMatrix}set _inverseBaseMatrix(e){this[I].inverseBaseMatrix=e,this[I].baseMatrix=null}get _inverseBaseMatrix(){return this[I].inverseBaseMatrix||this[I].baseMatrix&&(this[I].inverseBaseMatrix=new Float32Array(16),o(this[I].inverseBaseMatrix,this[I].baseMatrix)),this[I].inverseBaseMatrix}_getSpaceRelativeTransform(e){if(!this._inverseBaseMatrix||!e._baseMatrix)return null;let t=new Float32Array(16);return l(t,this._inverseBaseMatrix,e._baseMatrix),new P(t)}}const O=1.6,N=Symbol("@@webxr-polyfill/XRReferenceSpace"),Q=["viewer","local","local-floor","bounded-floor","unbounded"];class G extends L{constructor(e,t=null){if(!Q.includes(e))throw new Error(`XRReferenceSpaceType must be one of ${Q}`);if(super(e),"bounded-floor"===e&&!t)throw new Error("XRReferenceSpace cannot use 'bounded-floor' type if the platform does not provide the floor level");(function(e){return"bounded-floor"===e||"local-floor"===e})(e)&&!t&&((t=a(new Float32Array(16)))[13]=O),this._inverseBaseMatrix=t||a(new Float32Array(16)),this[N]={type:e,transform:t,originOffset:a(new Float32Array(16))}}_transformBasePoseMatrix(e,t){l(e,this._inverseBaseMatrix,t)}_originOffsetMatrix(){return this[N].originOffset}_adjustForOriginOffset(e){let t=new Float32Array(16);o(t,this[N].originOffset),l(e,t,e)}_getSpaceRelativeTransform(e){let t=super._getSpaceRelativeTransform(e);return this._adjustForOriginOffset(t.matrix),new XRRigidTransform(t.matrix)}getOffsetReferenceSpace(e){let t=new G(this[N].type,this[N].transform,this[N].bounds);return l(t[N].originOffset,this[N].originOffset,e.matrix),t}}const k=Symbol("@@webxr-polyfill/XR"),z=["inline","immersive-vr","immersive-ar"],V={inline:{requiredFeatures:["viewer"],optionalFeatures:[]},"immersive-vr":{requiredFeatures:["viewer","local"],optionalFeatures:[]},"immersive-ar":{requiredFeatures:["viewer","local"],optionalFeatures:[]}},U="Polyfill Error: Must call navigator.xr.isSessionSupported() with any XRSessionMode\nor navigator.xr.requestSession('inline') prior to requesting an immersive\nsession. This is a limitation specific to the WebXR Polyfill and does not apply\nto native implementations of the API.";let H;if("performance"in e==!1){let e=Date.now();H=(()=>Date.now()-e)}else H=(()=>performance.now());var X=H;const W=Symbol("@@webxr-polyfill/XRPose");class j{constructor(e,t){this[W]={transform:e,emulatedPosition:t}}get transform(){return this[W].transform}get emulatedPosition(){return this[W].emulatedPosition}}const q=Symbol("@@webxr-polyfill/XRViewerPose");class Y extends j{constructor(e,t,i=!1){super(e,i),this[q]={views:t}}get views(){return this[q].views}}const Z=Symbol("@@webxr-polyfill/XRViewport");class J{constructor(e){this[Z]={target:e}}get x(){return this[Z].target.x}get y(){return this[Z].target.y}get width(){return this[Z].target.width}get height(){return this[Z].target.height}}const K=["left","right","none"],$=Symbol("@@webxr-polyfill/XRView");class ee{constructor(e,t,i,r){if(!K.includes(i))throw new Error(`XREye must be one of: ${K}`);const s=Object.create(null),n=new J(s);this[$]={device:e,eye:i,viewport:n,temp:s,sessionId:r,transform:t}}get eye(){return this[$].eye}get projectionMatrix(){return this[$].device.getProjectionMatrix(this.eye)}get transform(){return this[$].transform}_getViewport(e){if(this[$].device.getViewport(this[$].sessionId,this.eye,e,this[$].temp))return this[$].viewport}}const te=Symbol("@@webxr-polyfill/XRFrame"),ie="XRFrame access outside the callback that produced it is invalid.",re="getViewerPose can only be called on XRFrame objects passed to XRSession.requestAnimationFrame callbacks.";let se=0;class ne{constructor(e,t,i){this[te]={id:++se,active:!1,animationFrame:!1,device:e,session:t,sessionId:i}}get session(){return this[te].session}getViewerPose(e){if(!this[te].animationFrame)throw new DOMException(re,"InvalidStateError");if(!this[te].active)throw new DOMException(ie,"InvalidStateError");const t=this[te].device,i=this[te].session;i[we].viewerSpace._ensurePoseUpdated(t,this[te].id),e._ensurePoseUpdated(t,this[te].id);let r=e._getSpaceRelativeTransform(i[we].viewerSpace);const s=[];for(let r of i[we].viewSpaces){r._ensurePoseUpdated(t,this[te].id);let i=e._getSpaceRelativeTransform(r),n=new ee(t,i,r.eye,this[te].sessionId);s.push(n)}return new Y(r,s,!1)}getPose(e,t){if(!this[te].active)throw new DOMException(ie,"InvalidStateError");const i=this[te].device;if("target-ray"===e._specialType||"grip"===e._specialType)return i.getInputPose(e._inputSource,t,e._specialType);{e._ensurePoseUpdated(i,this[te].id),t._ensurePoseUpdated(i,this[te].id);let r=t._getSpaceRelativeTransform(e);return r?new XRPose(r,!1):null}}}const ae=Symbol("@@webxr-polyfill/XRRenderState"),oe=Object.freeze({depthNear:.1,depthFar:1e3,inlineVerticalFieldOfView:null,baseLayer:null});class le{constructor(e={}){const t=Object.assign({},oe,e);this[ae]={config:t}}get depthNear(){return this[ae].config.depthNear}get depthFar(){return this[ae].config.depthFar}get inlineVerticalFieldOfView(){return this[ae].config.inlineVerticalFieldOfView}get baseLayer(){return this[ae].config.baseLayer}}const Ae=Symbol("@@webxr-polyfill/polyfilled-xr-compatible"),he=Symbol("@@webxr-polyfill/xr-compatible"),ce=Symbol("@@webxr-polyfill/XRWebGLLayer"),de=Object.freeze({antialias:!0,depth:!1,stencil:!1,alpha:!0,multiview:!1,ignoreDepthValues:!1,framebufferScaleFactor:1});const ue=Symbol("@@webxr-polyfill/XRInputSourceEvent");class pe extends Event{constructor(e,t){super(e,t),this[ue]={frame:t.frame,inputSource:t.inputSource}}get frame(){return this[ue].frame}get inputSource(){return this[ue].inputSource}}const fe=Symbol("@@webxr-polyfill/XRSessionEvent");class me extends Event{constructor(e,t){super(e,t),this[fe]={session:t.session}}get session(){return this[fe].session}}const ge=Symbol("@@webxr-polyfill/XRInputSourcesChangeEvent");class ve extends Event{constructor(e,t){super(e,t),this[ge]={session:t.session,added:t.added,removed:t.removed}}get session(){return this[ge].session}get added(){return this[ge].added}get removed(){return this[ge].removed}}const we=Symbol("@@webxr-polyfill/XRSession");class ye extends L{constructor(e){super(e)}get eye(){return this._specialType}_onPoseUpdate(e){this._inverseBaseMatrix=e.getBaseViewMatrix(this._specialType)}}class be extends i{constructor(e,t,i){super();let r="inline"!=t,s=new le({inlineVerticalFieldOfView:r?null:.5*Math.PI});this[we]={device:e,mode:t,immersive:r,ended:!1,suspended:!1,frameCallbacks:[],currentFrameCallbacks:null,frameHandle:0,deviceFrameHandle:null,id:i,activeRenderState:s,pendingRenderState:null,viewerSpace:new G("viewer"),viewSpaces:[],currentInputSources:[]},r?this[we].viewSpaces.push(new ye("left"),new ye("right")):this[we].viewSpaces.push(new 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this.dispatchEvent("focus",{session:this});this[we].ended=!0,this[we].stopDeviceFrameLoop(),e.removeEventListener("@webvr-polyfill/vr-present-end",this[we].onPresentationEnd),e.removeEventListener("@webvr-polyfill/vr-present-start",this[we].onPresentationStart),e.removeEventListener("@@webvr-polyfill/input-select-start",this[we].onSelectStart),e.removeEventListener("@@webvr-polyfill/input-select-end",this[we].onSelectEnd),this.dispatchEvent("end",new me("end",{session:this}))}),e.addEventListener("@@webxr-polyfill/vr-present-end",this[we].onPresentationEnd),this[we].onPresentationStart=(e=>{e!==this[we].id&&(this[we].suspended=!0,this[we].stopDeviceFrameLoop(),this.dispatchEvent("blur",{session:this}))}),e.addEventListener("@@webxr-polyfill/vr-present-start",this[we].onPresentationStart),this[we].onSelectStart=(e=>{e.sessionId===this[we].id&&this[we].dispatchInputSourceEvent("selectstart",e.inputSource)}),e.addEventListener("@@webxr-polyfill/input-select-start",this[we].onSelectStart),this[we].onSelectEnd=(e=>{e.sessionId===this[we].id&&(this[we].dispatchInputSourceEvent("selectend",e.inputSource),this[we].dispatchInputSourceEvent("select",e.inputSource))}),e.addEventListener("@@webxr-polyfill/input-select-end",this[we].onSelectEnd),this[we].onSqueezeStart=(e=>{e.sessionId===this[we].id&&this[we].dispatchInputSourceEvent("squeezestart",e.inputSource)}),e.addEventListener("@@webxr-polyfill/input-squeeze-start",this[we].onSqueezeStart),this[we].onSqueezeEnd=(e=>{e.sessionId===this[we].id&&(this[we].dispatchInputSourceEvent("squeezeend",e.inputSource),this[we].dispatchInputSourceEvent("squeeze",e.inputSource))}),e.addEventListener("@@webxr-polyfill/input-squeeze-end",this[we].onSqueezeEnd),this[we].dispatchInputSourceEvent=((t,i)=>{const r=new ne(e,this,this[we].id),s=new pe(t,{frame:r,inputSource:i});r[te].active=!0,this.dispatchEvent(t,s),r[te].active=!1}),this[we].startDeviceFrameLoop(),this.onblur=void 0,this.onfocus=void 0,this.onresetpose=void 0,this.onend=void 0,this.onselect=void 0,this.onselectstart=void 0,this.onselectend=void 0}get renderState(){return this[we].activeRenderState}get environmentBlendMode(){return this[we].device.environmentBlendMode||"opaque"}async requestReferenceSpace(e){if(this[we].ended)return;if(!Q.includes(e))throw new TypeError(`XRReferenceSpaceType must be one of ${Q}`);if(!this[we].device.doesSessionSupportReferenceSpace(this[we].id,e))throw new DOMException(`The ${e} reference space is not supported by this session.`,"NotSupportedError");if("viewer"===e)return this[we].viewerSpace;let t=await this[we].device.requestFrameOfReferenceTransform(e);if("bounded-floor"===e){if(!t)throw new DOMException(`${e} XRReferenceSpace not supported by this device.`,"NotSupportedError");if(!this[we].device.requestStageBounds())throw new DOMException(`${e} XRReferenceSpace not supported by this device.`,"NotSupportedError");throw new DOMException(`The WebXR polyfill does not support the ${e} reference space yet.`,"NotSupportedError")}return new G(e,t)}requestAnimationFrame(e){if(this[we].ended)return;const t=++this[we].frameHandle;return this[we].frameCallbacks.push({handle:t,callback:e,cancelled:!1}),t}cancelAnimationFrame(e){let t=this[we].frameCallbacks,i=t.findIndex(t=>t&&t.handle===e);i>-1&&(t[i].cancelled=!0,t.splice(i,1)),(t=this[we].currentFrameCallbacks)&&(i=t.findIndex(t=>t&&t.handle===e))>-1&&(t[i].cancelled=!0)}get inputSources(){return this[we].device.getInputSources()}async end(){if(!this[we].ended)return this.immersive&&(this[we].ended=!0,this[we].device.removeEventListener("@@webvr-polyfill/vr-present-start",this[we].onPresentationStart),this[we].device.removeEventListener("@@webvr-polyfill/vr-present-end",this[we].onPresentationEnd),this[we].device.removeEventListener("@@webvr-polyfill/input-select-start",this[we].onSelectStart),this[we].device.removeEventListener("@@webvr-polyfill/input-select-end",this[we].onSelectEnd),this.dispatchEvent("end",new me("end",{session:this}))),this[we].stopDeviceFrameLoop(),this[we].device.endSession(this[we].id)}updateRenderState(e){if(this[we].ended){throw new Error("Can't call updateRenderState on an XRSession that has already ended.")}if(e.baseLayer&&e.baseLayer._session!==this){throw new Error("Called updateRenderState with a base layer that was created by a different session.")}if(null!==e.inlineVerticalFieldOfView&&void 0!==e.inlineVerticalFieldOfView){if(this[we].immersive){throw new Error("inlineVerticalFieldOfView must not be set for an XRRenderState passed to updateRenderState for an immersive session.")}e.inlineVerticalFieldOfView=Math.min(3.13,Math.max(.01,e.inlineVerticalFieldOfView))}if(null===this[we].pendingRenderState){const e=this[we].activeRenderState;this[we].pendingRenderState={depthNear:e.depthNear,depthFar:e.depthFar,inlineVerticalFieldOfView:e.inlineVerticalFieldOfView,baseLayer:e.baseLayer}}Object.assign(this[we].pendingRenderState,e)}_checkInputSourcesChange(){const e=[],t=[],i=this.inputSources,r=this[we].currentInputSources;for(const t of i)r.includes(t)||e.push(t);for(const e of r)i.includes(e)||t.push(e);(e.length>0||t.length>0)&&this.dispatchEvent("inputsourceschange",new ve("inputsourceschange",{session:this,added:e,removed:t})),this[we].currentInputSources.length=0;for(const e of i)this[we].currentInputSources.push(e)}}const Ee=Symbol("@@webxr-polyfill/XRInputSource");class Se{constructor(e){this[Ee]={impl:e,gripSpace:new L("grip",this),targetRaySpace:new L("target-ray",this)}}get 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T(e,t,i,r){this.gl=e,this.cardboardUI=t,this.bufferScale=i,this.dirtySubmitFrameBindings=r,this.ctxAttribs=e.getContextAttributes(),this.meshWidth=20,this.meshHeight=20,this.bufferWidth=e.drawingBufferWidth,this.bufferHeight=e.drawingBufferHeight,this.realBindFramebuffer=e.bindFramebuffer,this.realEnable=e.enable,this.realDisable=e.disable,this.realColorMask=e.colorMask,this.realClearColor=e.clearColor,this.realViewport=e.viewport,o()||(this.realCanvasWidth=Object.getOwnPropertyDescriptor(e.canvas.__proto__,"width"),this.realCanvasHeight=Object.getOwnPropertyDescriptor(e.canvas.__proto__,"height")),this.isPatched=!1,this.lastBoundFramebuffer=null,this.cullFace=!1,this.depthTest=!1,this.blend=!1,this.scissorTest=!1,this.stencilTest=!1,this.viewport=[0,0,0,0],this.colorMask=[!0,!0,!0,!0],this.clearColor=[0,0,0,0],this.attribs={position:0,texCoord:1},this.program=g(e,F,R,this.attribs),this.uniforms=v(e,this.program),this.viewportOffsetScale=new Float32Array(8),this.setTextureBounds(),this.vertexBuffer=e.createBuffer(),this.indexBuffer=e.createBuffer(),this.indexCount=0,this.renderTarget=e.createTexture(),this.framebuffer=e.createFramebuffer(),this.depthStencilBuffer=null,this.depthBuffer=null,this.stencilBuffer=null,this.ctxAttribs.depth&&this.ctxAttribs.stencil?this.depthStencilBuffer=e.createRenderbuffer():this.ctxAttribs.depth?this.depthBuffer=e.createRenderbuffer():this.ctxAttribs.stencil&&(this.stencilBuffer=e.createRenderbuffer()),this.patch(),this.onResize()}T.prototype.destroy=function(){var e=this.gl;this.unpatch(),e.deleteProgram(this.program),e.deleteBuffer(this.vertexBuffer),e.deleteBuffer(this.indexBuffer),e.deleteTexture(this.renderTarget),e.deleteFramebuffer(this.framebuffer),this.depthStencilBuffer&&e.deleteRenderbuffer(this.depthStencilBuffer),this.depthBuffer&&e.deleteRenderbuffer(this.depthBuffer),this.stencilBuffer&&e.deleteRenderbuffer(this.stencilBuffer),this.cardboardUI&&this.cardboardUI.destroy()},T.prototype.onResize=function(){var e=this.gl,t=this,i=[e.RENDERBUFFER_BINDING,e.TEXTURE_BINDING_2D,e.TEXTURE0];_(e,i,function(e){t.realBindFramebuffer.call(e,e.FRAMEBUFFER,null),t.scissorTest&&t.realDisable.call(e,e.SCISSOR_TEST),t.realColorMask.call(e,!0,!0,!0,!0),t.realViewport.call(e,0,0,e.drawingBufferWidth,e.drawingBufferHeight),t.realClearColor.call(e,0,0,0,1),e.clear(e.COLOR_BUFFER_BIT),t.realBindFramebuffer.call(e,e.FRAMEBUFFER,t.framebuffer),e.bindTexture(e.TEXTURE_2D,t.renderTarget),e.texImage2D(e.TEXTURE_2D,0,t.ctxAttribs.alpha?e.RGBA:e.RGB,t.bufferWidth,t.bufferHeight,0,t.ctxAttribs.alpha?e.RGBA:e.RGB,e.UNSIGNED_BYTE,null),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MAG_FILTER,e.LINEAR),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MIN_FILTER,e.LINEAR),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_S,e.CLAMP_TO_EDGE),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_T,e.CLAMP_TO_EDGE),e.framebufferTexture2D(e.FRAMEBUFFER,e.COLOR_ATTACHMENT0,e.TEXTURE_2D,t.renderTarget,0),t.ctxAttribs.depth&&t.ctxAttribs.stencil?(e.bindRenderbuffer(e.RENDERBUFFER,t.depthStencilBuffer),e.renderbufferStorage(e.RENDERBUFFER,e.DEPTH_STENCIL,t.bufferWidth,t.bufferHeight),e.framebufferRenderbuffer(e.FRAMEBUFFER,e.DEPTH_STENCIL_ATTACHMENT,e.RENDERBUFFER,t.depthStencilBuffer)):t.ctxAttribs.depth?(e.bindRenderbuffer(e.RENDERBUFFER,t.depthBuffer),e.renderbufferStorage(e.RENDERBUFFER,e.DEPTH_COMPONENT16,t.bufferWidth,t.bufferHeight),e.framebufferRenderbuffer(e.FRAMEBUFFER,e.DEPTH_ATTACHMENT,e.RENDERBUFFER,t.depthBuffer)):t.ctxAttribs.stencil&&(e.bindRenderbuffer(e.RENDERBUFFER,t.stencilBuffer),e.renderbufferStorage(e.RENDERBUFFER,e.STENCIL_INDEX8,t.bufferWidth,t.bufferHeight),e.framebufferRenderbuffer(e.FRAMEBUFFER,e.STENCIL_ATTACHMENT,e.RENDERBUFFER,t.stencilBuffer)),!e.checkFramebufferStatus(e.FRAMEBUFFER)===e.FRAMEBUFFER_COMPLETE&&console.error("Framebuffer incomplete!"),t.realBindFramebuffer.call(e,e.FRAMEBUFFER,t.lastBoundFramebuffer),t.scissorTest&&t.realEnable.call(e,e.SCISSOR_TEST),t.realColorMask.apply(e,t.colorMask),t.realViewport.apply(e,t.viewport),t.realClearColor.apply(e,t.clearColor)}),this.cardboardUI&&this.cardboardUI.onResize()},T.prototype.patch=function(){if(!this.isPatched){var e=this,t=this.gl.canvas,i=this.gl;o()||(t.width=p()*this.bufferScale,t.height=f()*this.bufferScale,Object.defineProperty(t,"width",{configurable:!0,enumerable:!0,get:function(){return e.bufferWidth},set:function(i){e.bufferWidth=i,e.realCanvasWidth.set.call(t,i),e.onResize()}}),Object.defineProperty(t,"height",{configurable:!0,enumerable:!0,get:function(){return e.bufferHeight},set:function(i){e.bufferHeight=i,e.realCanvasHeight.set.call(t,i),e.onResize()}})),this.lastBoundFramebuffer=i.getParameter(i.FRAMEBUFFER_BINDING),null==this.lastBoundFramebuffer&&(this.lastBoundFramebuffer=this.framebuffer,this.gl.bindFramebuffer(i.FRAMEBUFFER,this.framebuffer)),this.gl.bindFramebuffer=function(t,r){e.lastBoundFramebuffer=r||e.framebuffer,e.realBindFramebuffer.call(i,t,e.lastBoundFramebuffer)},this.cullFace=i.getParameter(i.CULL_FACE),this.depthTest=i.getParameter(i.DEPTH_TEST),this.blend=i.getParameter(i.BLEND),this.scissorTest=i.getParameter(i.SCISSOR_TEST),this.stencilTest=i.getParameter(i.STENCIL_TEST),i.enable=function(t){switch(t){case i.CULL_FACE:e.cullFace=!0;break;case i.DEPTH_TEST:e.depthTest=!0;break;case i.BLEND:e.blend=!0;break;case i.SCISSOR_TEST:e.scissorTest=!0;break;case i.STENCIL_TEST:e.stencilTest=!0}e.realEnable.call(i,t)},i.disable=function(t){switch(t){case i.CULL_FACE:e.cullFace=!1;break;case i.DEPTH_TEST:e.depthTest=!1;break;case i.BLEND:e.blend=!1;break;case i.SCISSOR_TEST:e.scissorTest=!1;break;case i.STENCIL_TEST:e.stencilTest=!1}e.realDisable.call(i,t)},this.colorMask=i.getParameter(i.COLOR_WRITEMASK),i.colorMask=function(t,r,s,n){e.colorMask[0]=t,e.colorMask[1]=r,e.colorMask[2]=s,e.colorMask[3]=n,e.realColorMask.call(i,t,r,s,n)},this.clearColor=i.getParameter(i.COLOR_CLEAR_VALUE),i.clearColor=function(t,r,s,n){e.clearColor[0]=t,e.clearColor[1]=r,e.clearColor[2]=s,e.clearColor[3]=n,e.realClearColor.call(i,t,r,s,n)},this.viewport=i.getParameter(i.VIEWPORT),i.viewport=function(t,r,s,n){e.viewport[0]=t,e.viewport[1]=r,e.viewport[2]=s,e.viewport[3]=n,e.realViewport.call(i,t,r,s,n)},this.isPatched=!0,b(t)}},T.prototype.unpatch=function(){if(this.isPatched){var e=this.gl,t=this.gl.canvas;o()||(Object.defineProperty(t,"width",this.realCanvasWidth),Object.defineProperty(t,"height",this.realCanvasHeight)),t.width=this.bufferWidth,t.height=this.bufferHeight,e.bindFramebuffer=this.realBindFramebuffer,e.enable=this.realEnable,e.disable=this.realDisable,e.colorMask=this.realColorMask,e.clearColor=this.realClearColor,e.viewport=this.realViewport,this.lastBoundFramebuffer==this.framebuffer&&e.bindFramebuffer(e.FRAMEBUFFER,null),this.isPatched=!1,setTimeout(function(){b(t)},1)}},T.prototype.setTextureBounds=function(e,t){e||(e=[0,0,.5,1]),t||(t=[.5,0,.5,1]),this.viewportOffsetScale[0]=e[0],this.viewportOffsetScale[1]=e[1],this.viewportOffsetScale[2]=e[2],this.viewportOffsetScale[3]=e[3],this.viewportOffsetScale[4]=t[0],this.viewportOffsetScale[5]=t[1],this.viewportOffsetScale[6]=t[2],this.viewportOffsetScale[7]=t[3]},T.prototype.submitFrame=function(){var e=this.gl,t=this,i=[];if(this.dirtySubmitFrameBindings||i.push(e.CURRENT_PROGRAM,e.ARRAY_BUFFER_BINDING,e.ELEMENT_ARRAY_BUFFER_BINDING,e.TEXTURE_BINDING_2D,e.TEXTURE0),_(e,i,function(e){t.realBindFramebuffer.call(e,e.FRAMEBUFFER,null),t.cullFace&&t.realDisable.call(e,e.CULL_FACE),t.depthTest&&t.realDisable.call(e,e.DEPTH_TEST),t.blend&&t.realDisable.call(e,e.BLEND),t.scissorTest&&t.realDisable.call(e,e.SCISSOR_TEST),t.stencilTest&&t.realDisable.call(e,e.STENCIL_TEST),t.realColorMask.call(e,!0,!0,!0,!0),t.realViewport.call(e,0,0,e.drawingBufferWidth,e.drawingBufferHeight),(t.ctxAttribs.alpha||o())&&(t.realClearColor.call(e,0,0,0,1),e.clear(e.COLOR_BUFFER_BIT)),e.useProgram(t.program),e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,t.indexBuffer),e.bindBuffer(e.ARRAY_BUFFER,t.vertexBuffer),e.enableVertexAttribArray(t.attribs.position),e.enableVertexAttribArray(t.attribs.texCoord),e.vertexAttribPointer(t.attribs.position,2,e.FLOAT,!1,20,0),e.vertexAttribPointer(t.attribs.texCoord,3,e.FLOAT,!1,20,8),e.activeTexture(e.TEXTURE0),e.uniform1i(t.uniforms.diffuse,0),e.bindTexture(e.TEXTURE_2D,t.renderTarget),e.uniform4fv(t.uniforms.viewportOffsetScale,t.viewportOffsetScale),e.drawElements(e.TRIANGLES,t.indexCount,e.UNSIGNED_SHORT,0),t.cardboardUI&&t.cardboardUI.renderNoState(),t.realBindFramebuffer.call(t.gl,e.FRAMEBUFFER,t.framebuffer),t.ctxAttribs.preserveDrawingBuffer||(t.realClearColor.call(e,0,0,0,0),e.clear(e.COLOR_BUFFER_BIT)),t.dirtySubmitFrameBindings||t.realBindFramebuffer.call(e,e.FRAMEBUFFER,t.lastBoundFramebuffer),t.cullFace&&t.realEnable.call(e,e.CULL_FACE),t.depthTest&&t.realEnable.call(e,e.DEPTH_TEST),t.blend&&t.realEnable.call(e,e.BLEND),t.scissorTest&&t.realEnable.call(e,e.SCISSOR_TEST),t.stencilTest&&t.realEnable.call(e,e.STENCIL_TEST),t.realColorMask.apply(e,t.colorMask),t.realViewport.apply(e,t.viewport),!t.ctxAttribs.alpha&&t.ctxAttribs.preserveDrawingBuffer||t.realClearColor.apply(e,t.clearColor)}),o()){var r=e.canvas;r.width==t.bufferWidth&&r.height==t.bufferHeight||(t.bufferWidth=r.width,t.bufferHeight=r.height,t.onResize())}},T.prototype.updateDeviceInfo=function(e){var t=this.gl,i=this,r=[t.ARRAY_BUFFER_BINDING,t.ELEMENT_ARRAY_BUFFER_BINDING];_(t,r,function(t){var r=i.computeMeshVertices_(i.meshWidth,i.meshHeight,e);if(t.bindBuffer(t.ARRAY_BUFFER,i.vertexBuffer),t.bufferData(t.ARRAY_BUFFER,r,t.STATIC_DRAW),!i.indexCount){var s=i.computeMeshIndices_(i.meshWidth,i.meshHeight);t.bindBuffer(t.ELEMENT_ARRAY_BUFFER,i.indexBuffer),t.bufferData(t.ELEMENT_ARRAY_BUFFER,s,t.STATIC_DRAW),i.indexCount=s.length}})},T.prototype.computeMeshVertices_=function(e,t,i){for(var r=new Float32Array(2*e*t*5),s=i.getLeftEyeVisibleTanAngles(),n=i.getLeftEyeNoLensTanAngles(),o=i.getLeftEyeVisibleScreenRect(n),l=0,A=0;A<2;A++){for(var h=0;h<t;h++)for(var c=0;c<e;c++,l++){var d=c/(e-1),u=h/(t-1),p=d,f=u,m=a(s[0],s[2],d),g=a(s[3],s[1],u),v=Math.sqrt(m*m+g*g),w=i.distortion.distortInverse(v),y=m*w/v,b=g*w/v;d=(y-n[0])/(n[2]-n[0]),u=(b-n[3])/(n[1]-n[3]),d=2*(o.x+d*o.width-.5),u=2*(o.y+u*o.height-.5),r[5*l+0]=d,r[5*l+1]=u,r[5*l+2]=p,r[5*l+3]=f,r[5*l+4]=A}var E=s[2]-s[0];s[0]=-(E+s[0]),s[2]=E-s[2],E=n[2]-n[0],n[0]=-(E+n[0]),n[2]=E-n[2],o.x=1-(o.x+o.width)}return r},T.prototype.computeMeshIndices_=function(e,t){for(var i=new Uint16Array(2*(e-1)*(t-1)*6),r=e/2,s=t/2,n=0,a=0,o=0;o<2;o++)for(var l=0;l<t;l++)for(var A=0;A<e;A++,n++)0!=A&&0!=l&&(A<=r==l<=s?(i[a++]=n,i[a++]=n-e-1,i[a++]=n-e,i[a++]=n-e-1,i[a++]=n,i[a++]=n-1):(i[a++]=n-1,i[a++]=n-e,i[a++]=n,i[a++]=n-e,i[a++]=n-1,i[a++]=n-e-1));return i},T.prototype.getOwnPropertyDescriptor_=function(e,t){var i=Object.getOwnPropertyDescriptor(e,t);return void 0!==i.get&&void 0!==i.set||(i.configurable=!0,i.enumerable=!0,i.get=function(){return this.getAttribute(t)},i.set=function(e){this.setAttribute(t,e)}),i};var B=["attribute vec2 position;","uniform mat4 projectionMat;","void main() {"," gl_Position = projectionMat * vec4( position, -1.0, 1.0 );","}"].join("\n"),C=["precision mediump float;","uniform vec4 color;","void main() {"," gl_FragColor = color;","}"].join("\n"),D=Math.PI/180,P=.3125;function I(e){this.gl=e,this.attribs={position:0},this.program=g(e,B,C,this.attribs),this.uniforms=v(e,this.program),this.vertexBuffer=e.createBuffer(),this.gearOffset=0,this.gearVertexCount=0,this.arrowOffset=0,this.arrowVertexCount=0,this.projMat=new Float32Array(16),this.listener=null,this.onResize()}function L(e){this.coefficients=e}I.prototype.destroy=function(){var e=this.gl;this.listener&&e.canvas.removeEventListener("click",this.listener,!1),e.deleteProgram(this.program),e.deleteBuffer(this.vertexBuffer)},I.prototype.listen=function(e,t){var i=this.gl.canvas;this.listener=function(r){var s=i.clientWidth/2;r.clientX>s-42&&r.clientX<s+42&&r.clientY>i.clientHeight-42?e(r):r.clientX<42&&r.clientY<42&&t(r)},i.addEventListener("click",this.listener,!1)},I.prototype.onResize=function(){var e=this.gl,t=this,i=[e.ARRAY_BUFFER_BINDING];_(e,i,function(e){var i=[],r=e.drawingBufferWidth/2,s=Math.max(screen.width,screen.height)*window.devicePixelRatio,n=e.drawingBufferWidth/s,a=n*window.devicePixelRatio,o=4*a/2,l=42*a,A=28*a/2,h=14*a;function c(e,t){var s=(90-e)*D,n=Math.cos(s),a=Math.sin(s);i.push(P*n*A+r,P*a*A+A),i.push(t*n*A+r,t*a*A+A)}i.push(r-o,l),i.push(r-o,e.drawingBufferHeight),i.push(r+o,l),i.push(r+o,e.drawingBufferHeight),t.gearOffset=i.length/2;for(var d=0;d<=6;d++){var u=60*d;c(u,1),c(u+12,1),c(u+20,.75),c(u+40,.75),c(u+48,1)}function p(t,r){i.push(h+t,e.drawingBufferHeight-h-r)}t.gearVertexCount=i.length/2-t.gearOffset,t.arrowOffset=i.length/2;var f=o/Math.sin(45*D);p(0,A),p(A,0),p(A+f,f),p(f,A+f),p(f,A-f),p(0,A),p(A,2*A),p(A+f,2*A-f),p(f,A-f),p(0,A),p(f,A-o),p(28*a,A-o),p(f,A+o),p(28*a,A+o),t.arrowVertexCount=i.length/2-t.arrowOffset,e.bindBuffer(e.ARRAY_BUFFER,t.vertexBuffer),e.bufferData(e.ARRAY_BUFFER,new Float32Array(i),e.STATIC_DRAW)})},I.prototype.render=function(){var e=this.gl,t=this,i=[e.CULL_FACE,e.DEPTH_TEST,e.BLEND,e.SCISSOR_TEST,e.STENCIL_TEST,e.COLOR_WRITEMASK,e.VIEWPORT,e.CURRENT_PROGRAM,e.ARRAY_BUFFER_BINDING];_(e,i,function(e){e.disable(e.CULL_FACE),e.disable(e.DEPTH_TEST),e.disable(e.BLEND),e.disable(e.SCISSOR_TEST),e.disable(e.STENCIL_TEST),e.colorMask(!0,!0,!0,!0),e.viewport(0,0,e.drawingBufferWidth,e.drawingBufferHeight),t.renderNoState()})},I.prototype.renderNoState=function(){var e,t,i,r,s,n,a,o,l,A,h=this.gl;h.useProgram(this.program),h.bindBuffer(h.ARRAY_BUFFER,this.vertexBuffer),h.enableVertexAttribArray(this.attribs.position),h.vertexAttribPointer(this.attribs.position,2,h.FLOAT,!1,8,0),h.uniform4f(this.uniforms.color,1,1,1,1),e=this.projMat,t=0,i=h.drawingBufferWidth,r=0,s=h.drawingBufferHeight,o=1/(t-i),l=1/(r-s),A=1/((n=.1)-(a=1024)),e[0]=-2*o,e[1]=0,e[2]=0,e[3]=0,e[4]=0,e[5]=-2*l,e[6]=0,e[7]=0,e[8]=0,e[9]=0,e[10]=2*A,e[11]=0,e[12]=(t+i)*o,e[13]=(s+r)*l,e[14]=(a+n)*A,e[15]=1,h.uniformMatrix4fv(this.uniforms.projectionMat,!1,this.projMat),h.drawArrays(h.TRIANGLE_STRIP,0,4),h.drawArrays(h.TRIANGLE_STRIP,this.gearOffset,this.gearVertexCount),h.drawArrays(h.TRIANGLE_STRIP,this.arrowOffset,this.arrowVertexCount)},L.prototype.distortInverse=function(e){for(var t=0,i=1,r=e-this.distort(t);Math.abs(i-t)>1e-4;){var s=e-this.distort(i),n=i-s*((i-t)/(s-r));t=i,i=n,r=s}return i},L.prototype.distort=function(e){for(var t=e*e,i=0,r=0;r<this.coefficients.length;r++)i=t*(i+this.coefficients[r]);return(i+1)*e};var O=Math.PI/180,N=180/Math.PI,Q=function(e,t,i){this.x=e||0,this.y=t||0,this.z=i||0};Q.prototype={constructor:Q,set:function(e,t,i){return this.x=e,this.y=t,this.z=i,this},copy:function(e){return this.x=e.x,this.y=e.y,this.z=e.z,this},length:function(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z)},normalize:function(){var e=this.length();if(0!==e){var t=1/e;this.multiplyScalar(t)}else this.x=0,this.y=0,this.z=0;return this},multiplyScalar:function(e){this.x*=e,this.y*=e,this.z*=e},applyQuaternion:function(e){var t=this.x,i=this.y,r=this.z,s=e.x,n=e.y,a=e.z,o=e.w,l=o*t+n*r-a*i,A=o*i+a*t-s*r,h=o*r+s*i-n*t,c=-s*t-n*i-a*r;return this.x=l*o+c*-s+A*-a-h*-n,this.y=A*o+c*-n+h*-s-l*-a,this.z=h*o+c*-a+l*-n-A*-s,this},dot:function(e){return this.x*e.x+this.y*e.y+this.z*e.z},crossVectors:function(e,t){var i=e.x,r=e.y,s=e.z,n=t.x,a=t.y,o=t.z;return this.x=r*o-s*a,this.y=s*n-i*o,this.z=i*a-r*n,this}};var G,k,z=function(e,t,i,r){this.x=e||0,this.y=t||0,this.z=i||0,this.w=void 0!==r?r:1};function V(e){this.width=e.width||p(),this.height=e.height||f(),this.widthMeters=e.widthMeters,this.heightMeters=e.heightMeters,this.bevelMeters=e.bevelMeters}z.prototype={constructor:z,set:function(e,t,i,r){return this.x=e,this.y=t,this.z=i,this.w=r,this},copy:function(e){return this.x=e.x,this.y=e.y,this.z=e.z,this.w=e.w,this},setFromEulerXYZ:function(e,t,i){var r=Math.cos(e/2),s=Math.cos(t/2),n=Math.cos(i/2),a=Math.sin(e/2),o=Math.sin(t/2),l=Math.sin(i/2);return this.x=a*s*n+r*o*l,this.y=r*o*n-a*s*l,this.z=r*s*l+a*o*n,this.w=r*s*n-a*o*l,this},setFromEulerYXZ:function(e,t,i){var r=Math.cos(e/2),s=Math.cos(t/2),n=Math.cos(i/2),a=Math.sin(e/2),o=Math.sin(t/2),l=Math.sin(i/2);return this.x=a*s*n+r*o*l,this.y=r*o*n-a*s*l,this.z=r*s*l-a*o*n,this.w=r*s*n+a*o*l,this},setFromAxisAngle:function(e,t){var i=t/2,r=Math.sin(i);return this.x=e.x*r,this.y=e.y*r,this.z=e.z*r,this.w=Math.cos(i),this},multiply:function(e){return this.multiplyQuaternions(this,e)},multiplyQuaternions:function(e,t){var i=e.x,r=e.y,s=e.z,n=e.w,a=t.x,o=t.y,l=t.z,A=t.w;return this.x=i*A+n*a+r*l-s*o,this.y=r*A+n*o+s*a-i*l,this.z=s*A+n*l+i*o-r*a,this.w=n*A-i*a-r*o-s*l,this},inverse:function(){return this.x*=-1,this.y*=-1,this.z*=-1,this.normalize(),this},normalize:function(){var e=Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w);return 0===e?(this.x=0,this.y=0,this.z=0,this.w=1):(e=1/e,this.x=this.x*e,this.y=this.y*e,this.z=this.z*e,this.w=this.w*e),this},slerp:function(e,t){if(0===t)return this;if(1===t)return this.copy(e);var i=this.x,r=this.y,s=this.z,n=this.w,a=n*e.w+i*e.x+r*e.y+s*e.z;if(a<0?(this.w=-e.w,this.x=-e.x,this.y=-e.y,this.z=-e.z,a=-a):this.copy(e),a>=1)return this.w=n,this.x=i,this.y=r,this.z=s,this;var o=Math.acos(a),l=Math.sqrt(1-a*a);if(Math.abs(l)<.001)return this.w=.5*(n+this.w),this.x=.5*(i+this.x),this.y=.5*(r+this.y),this.z=.5*(s+this.z),this;var A=Math.sin((1-t)*o)/l,h=Math.sin(t*o)/l;return this.w=n*A+this.w*h,this.x=i*A+this.x*h,this.y=r*A+this.y*h,this.z=s*A+this.z*h,this},setFromUnitVectors:function(e,t){return void 0===G&&(G=new Q),(k=e.dot(t)+1)<1e-6?(k=0,Math.abs(e.x)>Math.abs(e.z)?G.set(-e.y,e.x,0):G.set(0,-e.z,e.y)):G.crossVectors(e,t),this.x=G.x,this.y=G.y,this.z=G.z,this.w=k,this.normalize(),this}};var U=new V({widthMeters:.11,heightMeters:.062,bevelMeters:.004}),H=new V({widthMeters:.1038,heightMeters:.0584,bevelMeters:.004}),X={CardboardV1:new j({id:"CardboardV1",label:"Cardboard I/O 2014",fov:40,interLensDistance:.06,baselineLensDistance:.035,screenLensDistance:.042,distortionCoefficients:[.441,.156],inverseCoefficients:[-.4410035,.42756155,-.4804439,.5460139,-.58821183,.5733938,-.48303202,.33299083,-.17573841,.0651772,-.01488963,.001559834]}),CardboardV2:new j({id:"CardboardV2",label:"Cardboard I/O 2015",fov:60,interLensDistance:.064,baselineLensDistance:.035,screenLensDistance:.039,distortionCoefficients:[.34,.55],inverseCoefficients:[-.33836704,-.18162185,.862655,-1.2462051,1.0560602,-.58208317,.21609078,-.05444823,.009177956,-.0009904169,6183535e-11,-16981803e-13]})};function W(e,t){this.viewer=X.CardboardV2,this.updateDeviceParams(e),this.distortion=new L(this.viewer.distortionCoefficients);for(var i=0;i<t.length;i++){var r=t[i];X[r.id]=new j(r)}}function j(e){this.id=e.id,this.label=e.label,this.fov=e.fov,this.interLensDistance=e.interLensDistance,this.baselineLensDistance=e.baselineLensDistance,this.screenLensDistance=e.screenLensDistance,this.distortionCoefficients=e.distortionCoefficients,this.inverseCoefficients=e.inverseCoefficients}W.prototype.updateDeviceParams=function(e){this.device=this.determineDevice_(e)||this.device},W.prototype.getDevice=function(){return this.device},W.prototype.setViewer=function(e){this.viewer=e,this.distortion=new L(this.viewer.distortionCoefficients)},W.prototype.determineDevice_=function(e){if(!e)return o()?(console.warn("Using fallback iOS device measurements."),H):(console.warn("Using fallback Android device measurements."),U);var t=.0254/e.xdpi,i=.0254/e.ydpi,r=p(),s=f();return new V({widthMeters:t*r,heightMeters:i*s,bevelMeters:.001*e.bevelMm})},W.prototype.getDistortedFieldOfViewLeftEye=function(){var e=this.viewer,t=this.device,i=this.distortion,r=e.screenLensDistance,s=(t.widthMeters-e.interLensDistance)/2,n=e.interLensDistance/2,a=e.baselineLensDistance-t.bevelMeters,o=t.heightMeters-a,l=N*Math.atan(i.distort(s/r)),A=N*Math.atan(i.distort(n/r)),h=N*Math.atan(i.distort(a/r)),c=N*Math.atan(i.distort(o/r));return{leftDegrees:Math.min(l,e.fov),rightDegrees:Math.min(A,e.fov),downDegrees:Math.min(h,e.fov),upDegrees:Math.min(c,e.fov)}},W.prototype.getLeftEyeVisibleTanAngles=function(){var e=this.viewer,t=this.device,i=this.distortion,r=Math.tan(-O*e.fov),s=Math.tan(O*e.fov),n=Math.tan(O*e.fov),a=Math.tan(-O*e.fov),o=t.widthMeters/4,l=t.heightMeters/2,A=e.baselineLensDistance-t.bevelMeters-l,h=e.interLensDistance/2-o,c=-A,d=e.screenLensDistance,u=i.distort((h-o)/d),p=i.distort((c+l)/d),f=i.distort((h+o)/d),m=i.distort((c-l)/d),g=new Float32Array(4);return g[0]=Math.max(r,u),g[1]=Math.min(s,p),g[2]=Math.min(n,f),g[3]=Math.max(a,m),g},W.prototype.getLeftEyeNoLensTanAngles=function(){var e=this.viewer,t=this.device,i=this.distortion,r=new Float32Array(4),s=i.distortInverse(Math.tan(-O*e.fov)),n=i.distortInverse(Math.tan(O*e.fov)),a=i.distortInverse(Math.tan(O*e.fov)),o=i.distortInverse(Math.tan(-O*e.fov)),l=t.widthMeters/4,A=t.heightMeters/2,h=e.baselineLensDistance-t.bevelMeters-A,c=e.interLensDistance/2-l,d=-h,u=e.screenLensDistance,p=(c-l)/u,f=(d+A)/u,m=(c+l)/u,g=(d-A)/u;return r[0]=Math.max(s,p),r[1]=Math.min(n,f),r[2]=Math.min(a,m),r[3]=Math.max(o,g),r},W.prototype.getLeftEyeVisibleScreenRect=function(e){var t=this.viewer,i=this.device,r=t.screenLensDistance,s=(i.widthMeters-t.interLensDistance)/2,n=t.baselineLensDistance-i.bevelMeters,a=(e[0]*r+s)/i.widthMeters,o=(e[1]*r+n)/i.heightMeters,l=(e[2]*r+s)/i.widthMeters,A=(e[3]*r+n)/i.heightMeters;return{x:a,y:A,width:l-a,height:o-A}},W.prototype.getFieldOfViewLeftEye=function(e){return e?this.getUndistortedFieldOfViewLeftEye():this.getDistortedFieldOfViewLeftEye()},W.prototype.getFieldOfViewRightEye=function(e){var t=this.getFieldOfViewLeftEye(e);return{leftDegrees:t.rightDegrees,rightDegrees:t.leftDegrees,upDegrees:t.upDegrees,downDegrees:t.downDegrees}},W.prototype.getUndistortedFieldOfViewLeftEye=function(){var e=this.getUndistortedParams_();return{leftDegrees:N*Math.atan(e.outerDist),rightDegrees:N*Math.atan(e.innerDist),downDegrees:N*Math.atan(e.bottomDist),upDegrees:N*Math.atan(e.topDist)}},W.prototype.getUndistortedViewportLeftEye=function(){var e=this.getUndistortedParams_(),t=this.viewer,i=this.device,r=t.screenLensDistance,s=i.widthMeters/r,n=i.heightMeters/r,a=i.width/s,o=i.height/n,l=Math.round((e.eyePosX-e.outerDist)*a),A=Math.round((e.eyePosY-e.bottomDist)*o);return{x:l,y:A,width:Math.round((e.eyePosX+e.innerDist)*a)-l,height:Math.round((e.eyePosY+e.topDist)*o)-A}},W.prototype.getUndistortedParams_=function(){var e=this.viewer,t=this.device,i=this.distortion,r=e.screenLensDistance,s=e.interLensDistance/2/r,n=t.widthMeters/r,a=t.heightMeters/r,o=n/2-s,l=(e.baselineLensDistance-t.bevelMeters)/r,A=e.fov,h=i.distortInverse(Math.tan(O*A)),c=Math.min(o,h),d=Math.min(s,h),u=Math.min(l,h),p=Math.min(a-l,h);return{outerDist:c,innerDist:d,topDist:p,bottomDist:u,eyePosX:o,eyePosY:l}},W.Viewers=X;var q={format:1,last_updated:"2018-12-10T17:01:42Z",devices:[{type:"android",rules:[{mdmh:"asus/*/Nexus 7/*"},{ua:"Nexus 7"}],dpi:[320.8,323],bw:3,ac:500},{type:"android",rules:[{mdmh:"asus/*/ASUS_Z00AD/*"},{ua:"ASUS_Z00AD"}],dpi:[403,404.6],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Google/*/Pixel 2 XL/*"},{ua:"Pixel 2 XL"}],dpi:537.9,bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Google/*/Pixel 3 XL/*"},{ua:"Pixel 3 XL"}],dpi:[558.5,553.8],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Google/*/Pixel XL/*"},{ua:"Pixel XL"}],dpi:[537.9,533],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Google/*/Pixel 3/*"},{ua:"Pixel 3"}],dpi:442.4,bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Google/*/Pixel 2/*"},{ua:"Pixel 2"}],dpi:441,bw:3,ac:500},{type:"android",rules:[{mdmh:"Google/*/Pixel/*"},{ua:"Pixel"}],dpi:[432.6,436.7],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"HTC/*/HTC6435LVW/*"},{ua:"HTC6435LVW"}],dpi:[449.7,443.3],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"HTC/*/HTC One XL/*"},{ua:"HTC One XL"}],dpi:[315.3,314.6],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"htc/*/Nexus 9/*"},{ua:"Nexus 9"}],dpi:289,bw:3,ac:500},{type:"android",rules:[{mdmh:"HTC/*/HTC One M9/*"},{ua:"HTC One M9"}],dpi:[442.5,443.3],bw:3,ac:500},{type:"android",rules:[{mdmh:"HTC/*/HTC One_M8/*"},{ua:"HTC One_M8"}],dpi:[449.7,447.4],bw:3,ac:500},{type:"android",rules:[{mdmh:"HTC/*/HTC One/*"},{ua:"HTC One"}],dpi:472.8,bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Huawei/*/Nexus 6P/*"},{ua:"Nexus 6P"}],dpi:[515.1,518],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Huawei/*/BLN-L24/*"},{ua:"HONORBLN-L24"}],dpi:480,bw:4,ac:500},{type:"android",rules:[{mdmh:"Huawei/*/BKL-L09/*"},{ua:"BKL-L09"}],dpi:403,bw:3.47,ac:500},{type:"android",rules:[{mdmh:"LENOVO/*/Lenovo PB2-690Y/*"},{ua:"Lenovo PB2-690Y"}],dpi:[457.2,454.713],bw:3,ac:500},{type:"android",rules:[{mdmh:"LGE/*/Nexus 5X/*"},{ua:"Nexus 5X"}],dpi:[422,419.9],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"LGE/*/LGMS345/*"},{ua:"LGMS345"}],dpi:[221.7,219.1],bw:3,ac:500},{type:"android",rules:[{mdmh:"LGE/*/LG-D800/*"},{ua:"LG-D800"}],dpi:[422,424.1],bw:3,ac:500},{type:"android",rules:[{mdmh:"LGE/*/LG-D850/*"},{ua:"LG-D850"}],dpi:[537.9,541.9],bw:3,ac:500},{type:"android",rules:[{mdmh:"LGE/*/VS985 4G/*"},{ua:"VS985 4G"}],dpi:[537.9,535.6],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"LGE/*/Nexus 5/*"},{ua:"Nexus 5 B"}],dpi:[442.4,444.8],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"LGE/*/Nexus 4/*"},{ua:"Nexus 4"}],dpi:[319.8,318.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"LGE/*/LG-P769/*"},{ua:"LG-P769"}],dpi:[240.6,247.5],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"LGE/*/LGMS323/*"},{ua:"LGMS323"}],dpi:[206.6,204.6],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"LGE/*/LGLS996/*"},{ua:"LGLS996"}],dpi:[403.4,401.5],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Micromax/*/4560MMX/*"},{ua:"4560MMX"}],dpi:[240,219.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Micromax/*/A250/*"},{ua:"Micromax A250"}],dpi:[480,446.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Micromax/*/Micromax AQ4501/*"},{ua:"Micromax AQ4501"}],dpi:240,bw:3,ac:500},{type:"android",rules:[{mdmh:"motorola/*/G5/*"},{ua:"Moto G (5) Plus"}],dpi:[403.4,403],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"motorola/*/DROID RAZR/*"},{ua:"DROID RAZR"}],dpi:[368.1,256.7],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"motorola/*/XT830C/*"},{ua:"XT830C"}],dpi:[254,255.9],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"motorola/*/XT1021/*"},{ua:"XT1021"}],dpi:[254,256.7],bw:3,ac:500},{type:"android",rules:[{mdmh:"motorola/*/XT1023/*"},{ua:"XT1023"}],dpi:[254,256.7],bw:3,ac:500},{type:"android",rules:[{mdmh:"motorola/*/XT1028/*"},{ua:"XT1028"}],dpi:[326.6,327.6],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"motorola/*/XT1034/*"},{ua:"XT1034"}],dpi:[326.6,328.4],bw:3,ac:500},{type:"android",rules:[{mdmh:"motorola/*/XT1053/*"},{ua:"XT1053"}],dpi:[315.3,316.1],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"motorola/*/XT1562/*"},{ua:"XT1562"}],dpi:[403.4,402.7],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"motorola/*/Nexus 6/*"},{ua:"Nexus 6 B"}],dpi:[494.3,489.7],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"motorola/*/XT1063/*"},{ua:"XT1063"}],dpi:[295,296.6],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"motorola/*/XT1064/*"},{ua:"XT1064"}],dpi:[295,295.6],bw:3,ac:500},{type:"android",rules:[{mdmh:"motorola/*/XT1092/*"},{ua:"XT1092"}],dpi:[422,424.1],bw:3,ac:500},{type:"android",rules:[{mdmh:"motorola/*/XT1095/*"},{ua:"XT1095"}],dpi:[422,423.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"motorola/*/G4/*"},{ua:"Moto G (4)"}],dpi:401,bw:4,ac:1e3},{type:"android",rules:[{mdmh:"OnePlus/*/A0001/*"},{ua:"A0001"}],dpi:[403.4,401],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"OnePlus/*/ONE E1005/*"},{ua:"ONE E1005"}],dpi:[442.4,441.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"OnePlus/*/ONE A2005/*"},{ua:"ONE A2005"}],dpi:[391.9,405.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"OnePlus/*/ONEPLUS A5000/*"},{ua:"ONEPLUS A5000 "}],dpi:[403.411,399.737],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"OnePlus/*/ONE A5010/*"},{ua:"ONEPLUS A5010"}],dpi:[403,400],bw:2,ac:1e3},{type:"android",rules:[{mdmh:"OPPO/*/X909/*"},{ua:"X909"}],dpi:[442.4,444.1],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/GT-I9082/*"},{ua:"GT-I9082"}],dpi:[184.7,185.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-G360P/*"},{ua:"SM-G360P"}],dpi:[196.7,205.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/Nexus S/*"},{ua:"Nexus S"}],dpi:[234.5,229.8],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/GT-I9300/*"},{ua:"GT-I9300"}],dpi:[304.8,303.9],bw:5,ac:500},{type:"android",rules:[{mdmh:"samsung/*/SM-T230NU/*"},{ua:"SM-T230NU"}],dpi:216,bw:3,ac:500},{type:"android",rules:[{mdmh:"samsung/*/SGH-T399/*"},{ua:"SGH-T399"}],dpi:[217.7,231.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SGH-M919/*"},{ua:"SGH-M919"}],dpi:[440.8,437.7],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-N9005/*"},{ua:"SM-N9005"}],dpi:[386.4,387],bw:3,ac:500},{type:"android",rules:[{mdmh:"samsung/*/SAMSUNG-SM-N900A/*"},{ua:"SAMSUNG-SM-N900A"}],dpi:[386.4,387.7],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/GT-I9500/*"},{ua:"GT-I9500"}],dpi:[442.5,443.3],bw:3,ac:500},{type:"android",rules:[{mdmh:"samsung/*/GT-I9505/*"},{ua:"GT-I9505"}],dpi:439.4,bw:4,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-G900F/*"},{ua:"SM-G900F"}],dpi:[415.6,431.6],bw:5,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-G900M/*"},{ua:"SM-G900M"}],dpi:[415.6,431.6],bw:5,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-G800F/*"},{ua:"SM-G800F"}],dpi:326.8,bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-G906S/*"},{ua:"SM-G906S"}],dpi:[562.7,572.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/GT-I9300/*"},{ua:"GT-I9300"}],dpi:[306.7,304.8],bw:5,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-T535/*"},{ua:"SM-T535"}],dpi:[142.6,136.4],bw:3,ac:500},{type:"android",rules:[{mdmh:"samsung/*/SM-N920C/*"},{ua:"SM-N920C"}],dpi:[515.1,518.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-N920P/*"},{ua:"SM-N920P"}],dpi:[386.3655,390.144],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-N920W8/*"},{ua:"SM-N920W8"}],dpi:[515.1,518.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/GT-I9300I/*"},{ua:"GT-I9300I"}],dpi:[304.8,305.8],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/GT-I9195/*"},{ua:"GT-I9195"}],dpi:[249.4,256.7],bw:3,ac:500},{type:"android",rules:[{mdmh:"samsung/*/SPH-L520/*"},{ua:"SPH-L520"}],dpi:[249.4,255.9],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SAMSUNG-SGH-I717/*"},{ua:"SAMSUNG-SGH-I717"}],dpi:285.8,bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SPH-D710/*"},{ua:"SPH-D710"}],dpi:[217.7,204.2],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/GT-N7100/*"},{ua:"GT-N7100"}],dpi:265.1,bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SCH-I605/*"},{ua:"SCH-I605"}],dpi:265.1,bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/Galaxy Nexus/*"},{ua:"Galaxy Nexus"}],dpi:[315.3,314.2],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-N910H/*"},{ua:"SM-N910H"}],dpi:[515.1,518],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-N910C/*"},{ua:"SM-N910C"}],dpi:[515.2,520.2],bw:3,ac:500},{type:"android",rules:[{mdmh:"samsung/*/SM-G130M/*"},{ua:"SM-G130M"}],dpi:[165.9,164.8],bw:3,ac:500},{type:"android",rules:[{mdmh:"samsung/*/SM-G928I/*"},{ua:"SM-G928I"}],dpi:[515.1,518.4],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-G920F/*"},{ua:"SM-G920F"}],dpi:580.6,bw:3,ac:500},{type:"android",rules:[{mdmh:"samsung/*/SM-G920P/*"},{ua:"SM-G920P"}],dpi:[522.5,577],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-G925F/*"},{ua:"SM-G925F"}],dpi:580.6,bw:3,ac:500},{type:"android",rules:[{mdmh:"samsung/*/SM-G925V/*"},{ua:"SM-G925V"}],dpi:[522.5,576.6],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-G930F/*"},{ua:"SM-G930F"}],dpi:576.6,bw:3,ac:1e3},{type:"android",rules:[{mdmh:"samsung/*/SM-G935F/*"},{ua:"SM-G935F"}],dpi:533,bw:3,ac:500},{type:"android",rules:[{mdmh:"samsung/*/SM-G950F/*"},{ua:"SM-G950F"}],dpi:[562.707,565.293],bw:3,ac:500},{type:"android",rules:[{mdmh:"samsung/*/SM-G955U/*"},{ua:"SM-G955U"}],dpi:[522.514,525.762],bw:3,ac:500},{type:"android",rules:[{mdmh:"samsung/*/SM-G955F/*"},{ua:"SM-G955F"}],dpi:[522.514,525.762],bw:3,ac:500},{type:"android",rules:[{mdmh:"Sony/*/C6903/*"},{ua:"C6903"}],dpi:[442.5,443.3],bw:3,ac:500},{type:"android",rules:[{mdmh:"Sony/*/D6653/*"},{ua:"D6653"}],dpi:[428.6,427.6],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Sony/*/E6653/*"},{ua:"E6653"}],dpi:[428.6,425.7],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Sony/*/E6853/*"},{ua:"E6853"}],dpi:[403.4,401.9],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Sony/*/SGP321/*"},{ua:"SGP321"}],dpi:[224.7,224.1],bw:3,ac:500},{type:"android",rules:[{mdmh:"TCT/*/ALCATEL ONE TOUCH Fierce/*"},{ua:"ALCATEL ONE TOUCH Fierce"}],dpi:[240,247.5],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"THL/*/thl 5000/*"},{ua:"thl 5000"}],dpi:[480,443.3],bw:3,ac:1e3},{type:"android",rules:[{mdmh:"Fly/*/IQ4412/*"},{ua:"IQ4412"}],dpi:307.9,bw:3,ac:1e3},{type:"android",rules:[{mdmh:"ZTE/*/ZTE Blade L2/*"},{ua:"ZTE Blade L2"}],dpi:240,bw:3,ac:500},{type:"android",rules:[{mdmh:"BENEVE/*/VR518/*"},{ua:"VR518"}],dpi:480,bw:3,ac:500},{type:"ios",rules:[{res:[640,960]}],dpi:[325.1,328.4],bw:4,ac:1e3},{type:"ios",rules:[{res:[640,1136]}],dpi:[317.1,320.2],bw:3,ac:1e3},{type:"ios",rules:[{res:[750,1334]}],dpi:326.4,bw:4,ac:1e3},{type:"ios",rules:[{res:[1242,2208]}],dpi:[453.6,458.4],bw:4,ac:1e3},{type:"ios",rules:[{res:[1125,2001]}],dpi:[410.9,415.4],bw:4,ac:1e3},{type:"ios",rules:[{res:[1125,2436]}],dpi:458,bw:4,ac:1e3}]};function Y(e,t){if(this.dpdb=q,this.recalculateDeviceParams_(),e){this.onDeviceParamsUpdated=t;var i=new XMLHttpRequest,r=this;i.open("GET",e,!0),i.addEventListener("load",function(){r.loading=!1,i.status>=200&&i.status<=299?(r.dpdb=JSON.parse(i.response),r.recalculateDeviceParams_()):console.error("Error loading online DPDB!")}),i.send()}}function Z(e){this.xdpi=e.xdpi,this.ydpi=e.ydpi,this.bevelMm=e.bevelMm}function J(e,t){this.set(e,t)}function K(e,t){this.kFilter=e,this.isDebug=t,this.currentAccelMeasurement=new J,this.currentGyroMeasurement=new J,this.previousGyroMeasurement=new J,o()?this.filterQ=new z(-1,0,0,1):this.filterQ=new z(1,0,0,1),this.previousFilterQ=new z,this.previousFilterQ.copy(this.filterQ),this.accelQ=new z,this.isOrientationInitialized=!1,this.estimatedGravity=new Q,this.measuredGravity=new Q,this.gyroIntegralQ=new z}function $(e,t){this.predictionTimeS=e,this.isDebug=t,this.previousQ=new z,this.previousTimestampS=null,this.deltaQ=new z,this.outQ=new z}function ee(e,t,i,r){this.yawOnly=i,this.accelerometer=new Q,this.gyroscope=new Q,this.filter=new K(e,r),this.posePredictor=new $(t,r),this.isFirefoxAndroid=A(),this.isIOS=o();var s=h();this.isDeviceMotionInRadians=!this.isIOS&&s&&s<66,this.isWithoutDeviceMotion=c(),this.filterToWorldQ=new z,o()?this.filterToWorldQ.setFromAxisAngle(new Q(1,0,0),Math.PI/2):this.filterToWorldQ.setFromAxisAngle(new Q(1,0,0),-Math.PI/2),this.inverseWorldToScreenQ=new z,this.worldToScreenQ=new z,this.originalPoseAdjustQ=new z,this.originalPoseAdjustQ.setFromAxisAngle(new Q(0,0,1),-window.orientation*Math.PI/180),this.setScreenTransform_(),u()&&this.filterToWorldQ.multiply(this.inverseWorldToScreenQ),this.resetQ=new z,this.orientationOut_=new Float32Array(4),this.start()}Y.prototype.getDeviceParams=function(){return this.deviceParams},Y.prototype.recalculateDeviceParams_=function(){var e=this.calcDeviceParams_();e?(this.deviceParams=e,this.onDeviceParamsUpdated&&this.onDeviceParamsUpdated(this.deviceParams)):console.error("Failed to recalculate device parameters.")},Y.prototype.calcDeviceParams_=function(){var e=this.dpdb;if(!e)return console.error("DPDB not available."),null;if(1!=e.format)return console.error("DPDB has unexpected format version."),null;if(!e.devices||!e.devices.length)return console.error("DPDB does not have a devices section."),null;var t=navigator.userAgent||navigator.vendor||window.opera,i=p(),r=f();if(!e.devices)return console.error("DPDB has no devices section."),null;for(var s=0;s<e.devices.length;s++){var n=e.devices[s];if(n.rules)if("ios"==n.type||"android"==n.type){if(o()==("ios"==n.type)){for(var a=!1,l=0;l<n.rules.length;l++){var A=n.rules[l];if(this.ruleMatches_(A,t,i,r)){a=!0;break}}if(a){var h=n.dpi[0]||n.dpi,c=n.dpi[1]||n.dpi;return new Z({xdpi:h,ydpi:c,bevelMm:n.bw})}}}else console.warn("Device["+s+"] has invalid type.");else console.warn("Device["+s+"] has no rules section.")}return console.warn("No DPDB device match."),null},Y.prototype.ruleMatches_=function(e,t,i,r){if(!e.ua&&!e.res)return!1;if(e.ua&&"SM"===e.ua.substring(0,2)&&(e.ua=e.ua.substring(0,7)),e.ua&&t.indexOf(e.ua)<0)return!1;if(e.res){if(!e.res[0]||!e.res[1])return!1;var s=e.res[0],n=e.res[1];if(Math.min(i,r)!=Math.min(s,n)||Math.max(i,r)!=Math.max(s,n))return!1}return!0},J.prototype.set=function(e,t){this.sample=e,this.timestampS=t},J.prototype.copy=function(e){this.set(e.sample,e.timestampS)},K.prototype.addAccelMeasurement=function(e,t){this.currentAccelMeasurement.set(e,t)},K.prototype.addGyroMeasurement=function(e,t){this.currentGyroMeasurement.set(e,t);var i,r=t-this.previousGyroMeasurement.timestampS;i=r,!(isNaN(i)||i<=.001||i>1)&&this.run_(),this.previousGyroMeasurement.copy(this.currentGyroMeasurement)},K.prototype.run_=function(){if(!this.isOrientationInitialized)return this.accelQ=this.accelToQuaternion_(this.currentAccelMeasurement.sample),this.previousFilterQ.copy(this.accelQ),void(this.isOrientationInitialized=!0);var e=this.currentGyroMeasurement.timestampS-this.previousGyroMeasurement.timestampS,t=this.gyroToQuaternionDelta_(this.currentGyroMeasurement.sample,e);this.gyroIntegralQ.multiply(t),this.filterQ.copy(this.previousFilterQ),this.filterQ.multiply(t);var i=new z;i.copy(this.filterQ),i.inverse(),this.estimatedGravity.set(0,0,-1),this.estimatedGravity.applyQuaternion(i),this.estimatedGravity.normalize(),this.measuredGravity.copy(this.currentAccelMeasurement.sample),this.measuredGravity.normalize();var r,s=new z;s.setFromUnitVectors(this.estimatedGravity,this.measuredGravity),s.inverse(),this.isDebug&&console.log("Delta: %d deg, G_est: (%s, %s, %s), G_meas: (%s, %s, %s)",N*((r=s).w>1?(console.warn("getQuaternionAngle: w > 1"),0):2*Math.acos(r.w)),this.estimatedGravity.x.toFixed(1),this.estimatedGravity.y.toFixed(1),this.estimatedGravity.z.toFixed(1),this.measuredGravity.x.toFixed(1),this.measuredGravity.y.toFixed(1),this.measuredGravity.z.toFixed(1));var n=new z;n.copy(this.filterQ),n.multiply(s),this.filterQ.slerp(n,1-this.kFilter),this.previousFilterQ.copy(this.filterQ)},K.prototype.getOrientation=function(){return this.filterQ},K.prototype.accelToQuaternion_=function(e){var t=new Q;t.copy(e),t.normalize();var i=new z;return i.setFromUnitVectors(new Q(0,0,-1),t),i.inverse(),i},K.prototype.gyroToQuaternionDelta_=function(e,t){var i=new z,r=new Q;return r.copy(e),r.normalize(),i.setFromAxisAngle(r,e.length()*t),i},$.prototype.getPrediction=function(e,t,i){if(!this.previousTimestampS)return this.previousQ.copy(e),this.previousTimestampS=i,e;var r=new Q;r.copy(t),r.normalize();var s=t.length();if(s<20*O)return this.isDebug&&console.log("Moving slowly, at %s deg/s: no prediction",(N*s).toFixed(1)),this.outQ.copy(e),this.previousQ.copy(e),this.outQ;var n=s*this.predictionTimeS;return this.deltaQ.setFromAxisAngle(r,n),this.outQ.copy(this.previousQ),this.outQ.multiply(this.deltaQ),this.previousQ.copy(e),this.previousTimestampS=i,this.outQ},ee.prototype.getPosition=function(){return null},ee.prototype.getOrientation=function(){var e=void 0;if(this.isWithoutDeviceMotion&&this._deviceOrientationQ){this.deviceOrientationFixQ=this.deviceOrientationFixQ||(r=(new z).setFromAxisAngle(new Q(0,0,-1),0),s=new z,-90===window.orientation?s.setFromAxisAngle(new Q(0,1,0),Math.PI/-2):s.setFromAxisAngle(new Q(0,1,0),Math.PI/2),r.multiply(s)),this.deviceOrientationFilterToWorldQ=this.deviceOrientationFilterToWorldQ||((i=new z).setFromAxisAngle(new Q(1,0,0),-Math.PI/2),i),e=this._deviceOrientationQ;var t=new z;return t.copy(e),t.multiply(this.deviceOrientationFilterToWorldQ),t.multiply(this.resetQ),t.multiply(this.worldToScreenQ),t.multiplyQuaternions(this.deviceOrientationFixQ,t),this.yawOnly&&(t.x=0,t.z=0,t.normalize()),this.orientationOut_[0]=t.x,this.orientationOut_[1]=t.y,this.orientationOut_[2]=t.z,this.orientationOut_[3]=t.w,this.orientationOut_}var i,r,s,n=this.filter.getOrientation();e=this.posePredictor.getPrediction(n,this.gyroscope,this.previousTimestampS);var t=new z;return t.copy(this.filterToWorldQ),t.multiply(this.resetQ),t.multiply(e),t.multiply(this.worldToScreenQ),this.yawOnly&&(t.x=0,t.z=0,t.normalize()),this.orientationOut_[0]=t.x,this.orientationOut_[1]=t.y,this.orientationOut_[2]=t.z,this.orientationOut_[3]=t.w,this.orientationOut_},ee.prototype.resetPose=function(){this.resetQ.copy(this.filter.getOrientation()),this.resetQ.x=0,this.resetQ.y=0,this.resetQ.z*=-1,this.resetQ.normalize(),u()&&this.resetQ.multiply(this.inverseWorldToScreenQ),this.resetQ.multiply(this.originalPoseAdjustQ)},ee.prototype.onDeviceOrientation_=function(e){this._deviceOrientationQ=this._deviceOrientationQ||new z;var t=e.alpha,i=e.beta,r=e.gamma;t=(t||0)*Math.PI/180,i=(i||0)*Math.PI/180,r=(r||0)*Math.PI/180,this._deviceOrientationQ.setFromEulerYXZ(i,t,-r)},ee.prototype.onDeviceMotion_=function(e){this.updateDeviceMotion_(e)},ee.prototype.updateDeviceMotion_=function(e){var t=e.accelerationIncludingGravity,i=e.rotationRate,r=e.timeStamp/1e3,s=r-this.previousTimestampS;return s<0?(M("fusion-pose-sensor:invalid:non-monotonic","Invalid timestamps detected: non-monotonic timestamp from devicemotion"),void(this.previousTimestampS=r)):s<=.001||s>1?(M("fusion-pose-sensor:invalid:outside-threshold","Invalid timestamps detected: Timestamp from devicemotion outside expected range."),void(this.previousTimestampS=r)):(this.accelerometer.set(-t.x,-t.y,-t.z),d()?this.gyroscope.set(-i.beta,i.alpha,i.gamma):this.gyroscope.set(i.alpha,i.beta,i.gamma),this.isDeviceMotionInRadians||this.gyroscope.multiplyScalar(Math.PI/180),this.filter.addAccelMeasurement(this.accelerometer,r),this.filter.addGyroMeasurement(this.gyroscope,r),void(this.previousTimestampS=r))},ee.prototype.onOrientationChange_=function(e){this.setScreenTransform_()},ee.prototype.onMessage_=function(e){var t=e.data;if(t&&t.type){var i=t.type.toLowerCase();"devicemotion"===i&&this.updateDeviceMotion_(t.deviceMotionEvent)}},ee.prototype.setScreenTransform_=function(){switch(this.worldToScreenQ.set(0,0,0,1),window.orientation){case 0:break;case 90:this.worldToScreenQ.setFromAxisAngle(new Q(0,0,1),-Math.PI/2);break;case-90:this.worldToScreenQ.setFromAxisAngle(new Q(0,0,1),Math.PI/2)}this.inverseWorldToScreenQ.copy(this.worldToScreenQ),this.inverseWorldToScreenQ.inverse()},ee.prototype.start=function(){var e,t,i;this.onDeviceMotionCallback_=this.onDeviceMotion_.bind(this),this.onOrientationChangeCallback_=this.onOrientationChange_.bind(this),this.onMessageCallback_=this.onMessage_.bind(this),this.onDeviceOrientationCallback_=this.onDeviceOrientation_.bind(this),o()&&(e=window.self!==window.top,t=S(document.referrer),i=S(window.location.href),e&&t!==i)&&window.addEventListener("message",this.onMessageCallback_),window.addEventListener("orientationchange",this.onOrientationChangeCallback_),this.isWithoutDeviceMotion?window.addEventListener("deviceorientation",this.onDeviceOrientationCallback_):window.addEventListener("devicemotion",this.onDeviceMotionCallback_)},ee.prototype.stop=function(){window.removeEventListener("devicemotion",this.onDeviceMotionCallback_),window.removeEventListener("deviceorientation",this.onDeviceOrientationCallback_),window.removeEventListener("orientationchange",this.onOrientationChangeCallback_),window.removeEventListener("message",this.onMessageCallback_)};var te=new Q(1,0,0),ie=new Q(0,0,1),re=new z;re.setFromAxisAngle(te,-Math.PI/2),re.multiply((new z).setFromAxisAngle(ie,Math.PI/2));var se=function(){function e(t){r(this,e),this.config=t,this.sensor=null,this.fusionSensor=null,this._out=new Float32Array(4),this.api=null,this.errors=[],this._sensorQ=new z,this._outQ=new z,this._onSensorRead=this._onSensorRead.bind(this),this._onSensorError=this._onSensorError.bind(this),this.init()}return s(e,[{key:"init",value:function(){var e=null;try{(e=new RelativeOrientationSensor({frequency:60,referenceFrame:"screen"})).addEventListener("error",this._onSensorError)}catch(e){this.errors.push(e),"SecurityError"===e.name?(console.error("Cannot construct sensors due to the Feature Policy"),console.warn('Attempting to fall back using "devicemotion"; however this will fail in the future without correct permissions.'),this.useDeviceMotion()):"ReferenceError"===e.name?this.useDeviceMotion():console.error(e)}e&&(this.api="sensor",this.sensor=e,this.sensor.addEventListener("reading",this._onSensorRead),this.sensor.start())}},{key:"useDeviceMotion",value:function(){this.api="devicemotion",this.fusionSensor=new ee(this.config.K_FILTER,this.config.PREDICTION_TIME_S,this.config.YAW_ONLY,this.config.DEBUG),this.sensor&&(this.sensor.removeEventListener("reading",this._onSensorRead),this.sensor.removeEventListener("error",this._onSensorError),this.sensor=null)}},{key:"getOrientation",value:function(){if(this.fusionSensor)return this.fusionSensor.getOrientation();if(!this.sensor||!this.sensor.quaternion)return this._out[0]=this._out[1]=this._out[2]=0,this._out[3]=1,this._out;var e=this.sensor.quaternion;this._sensorQ.set(e[0],e[1],e[2],e[3]);var t=this._outQ;return t.copy(re),t.multiply(this._sensorQ),this.config.YAW_ONLY&&(t.x=t.z=0,t.normalize()),this._out[0]=t.x,this._out[1]=t.y,this._out[2]=t.z,this._out[3]=t.w,this._out}},{key:"_onSensorError",value:function(e){this.errors.push(e.error),"NotAllowedError"===e.error.name?console.error("Permission to access sensor was denied"):"NotReadableError"===e.error.name?console.error("Sensor could not be read"):console.error(e.error),this.useDeviceMotion()}},{key:"_onSensorRead",value:function(){}}]),e}();function ne(){this.loadIcon_();var e=document.createElement("div"),t=e.style;t.position="fixed",t.top=0,t.right=0,t.bottom=0,t.left=0,t.backgroundColor="gray",t.fontFamily="sans-serif",t.zIndex=1e6;var i=document.createElement("img");i.src=this.icon;var t=i.style;t.marginLeft="25%",t.marginTop="25%",t.width="50%",e.appendChild(i);var r=document.createElement("div"),t=r.style;t.textAlign="center",t.fontSize="16px",t.lineHeight="24px",t.margin="24px 25%",t.width="50%",r.innerHTML="Place your phone into your Cardboard viewer.",e.appendChild(r);var s=document.createElement("div"),t=s.style;t.backgroundColor="#CFD8DC",t.position="fixed",t.bottom=0,t.width="100%",t.height="48px",t.padding="14px 24px",t.boxSizing="border-box",t.color="#656A6B",e.appendChild(s);var n=document.createElement("div");n.style.float="left",n.innerHTML="No Cardboard viewer?";var a=document.createElement("a");a.href="https://www.google.com/get/cardboard/get-cardboard/",a.innerHTML="get one",a.target="_blank";var t=a.style;t.float="right",t.fontWeight=600,t.textTransform="uppercase",t.borderLeft="1px solid gray",t.paddingLeft="24px",t.textDecoration="none",t.color="#656A6B",s.appendChild(n),s.appendChild(a),this.overlay=e,this.text=r,this.hide()}ne.prototype.show=function(e){e||this.overlay.parentElement?e&&(this.overlay.parentElement&&this.overlay.parentElement!=e&&this.overlay.parentElement.removeChild(this.overlay),e.appendChild(this.overlay)):document.body.appendChild(this.overlay),this.overlay.style.display="block";var t=this.overlay.querySelector("img"),i=t.style;u()?(i.width="20%",i.marginLeft="40%",i.marginTop="3%"):(i.width="50%",i.marginLeft="25%",i.marginTop="25%")},ne.prototype.hide=function(){this.overlay.style.display="none"},ne.prototype.showTemporarily=function(e,t){this.show(t),this.timer=setTimeout(this.hide.bind(this),e)},ne.prototype.disableShowTemporarily=function(){clearTimeout(this.timer)},ne.prototype.update=function(){this.disableShowTemporarily(),!u()&&w()?this.show():this.hide()},ne.prototype.loadIcon_=function(){this.icon="data:image/svg+xml,"+encodeURIComponent("<svg width='198' height='240' viewBox='0 0 198 240' xmlns='http://www.w3.org/2000/svg'><g fill='none' fill-rule='evenodd'><path d='M149.625 109.527l6.737 3.891v.886c0 .177.013.36.038.549.01.081.02.162.027.242.14 1.415.974 2.998 2.105 3.999l5.72 5.062.081-.09s4.382-2.53 5.235-3.024l25.97 14.993v54.001c0 .771-.386 1.217-.948 1.217-.233 0-.495-.076-.772-.236l-23.967-13.838-.014.024-27.322 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ge(e){Object.defineProperties(this,{hasPosition:{writable:!1,enumerable:!0,value:e.hasPosition},hasExternalDisplay:{writable:!1,enumerable:!0,value:e.hasExternalDisplay},canPresent:{writable:!1,enumerable:!0,value:e.canPresent},maxLayers:{writable:!1,enumerable:!0,value:e.maxLayers},hasOrientation:{enumerable:!0,get:function(){return x("VRDisplayCapabilities.prototype.hasOrientation","VRDisplay.prototype.getFrameData"),e.hasOrientation}}})}function ve(e){var t=!("wakelock"in(e=e||{}))||e.wakelock;this.isPolyfilled=!0,this.displayId=de++,this.displayName="",this.depthNear=.01,this.depthFar=1e4,this.isPresenting=!1,Object.defineProperty(this,"isConnected",{get:function(){return x("VRDisplay.prototype.isConnected","VRDisplayCapabilities.prototype.hasExternalDisplay"),!1}}),this.capabilities=new ge({hasPosition:!1,hasOrientation:!1,hasExternalDisplay:!1,canPresent:!1,maxLayers:1}),this.stageParameters=null,this.waitingForPresent_=!1,this.layer_=null,this.originalParent_=null,this.fullscreenElement_=null,this.fullscreenWrapper_=null,this.fullscreenElementCachedStyle_=null,this.fullscreenEventTarget_=null,this.fullscreenChangeHandler_=null,this.fullscreenErrorHandler_=null,t&&w()&&(this.wakelock_=new ce)}ve.prototype.getFrameData=function(e){return E(e,this._getPose(),this)},ve.prototype.getPose=function(){return x("VRDisplay.prototype.getPose","VRDisplay.prototype.getFrameData"),this._getPose()},ve.prototype.resetPose=function(){return x("VRDisplay.prototype.resetPose"),this._resetPose()},ve.prototype.getImmediatePose=function(){return x("VRDisplay.prototype.getImmediatePose","VRDisplay.prototype.getFrameData"),this._getPose()},ve.prototype.requestAnimationFrame=function(e){return fe(e)},ve.prototype.cancelAnimationFrame=function(e){return me(e)},ve.prototype.wrapForFullscreen=function(e){if(o())return e;if(!this.fullscreenWrapper_){this.fullscreenWrapper_=document.createElement("div");var t=["height: "+Math.min(screen.height,screen.width)+"px !important","top: 0 !important","left: 0 !important","right: 0 !important","border: 0","margin: 0","padding: 0","z-index: 999999 !important","position: fixed"];this.fullscreenWrapper_.setAttribute("style",t.join("; ")+";"),this.fullscreenWrapper_.classList.add("webvr-polyfill-fullscreen-wrapper")}if(this.fullscreenElement_==e)return this.fullscreenWrapper_;if(this.fullscreenElement_&&(this.originalParent_?this.originalParent_.appendChild(this.fullscreenElement_):this.fullscreenElement_.parentElement.removeChild(this.fullscreenElement_)),this.fullscreenElement_=e,this.originalParent_=e.parentElement,this.originalParent_||document.body.appendChild(e),!this.fullscreenWrapper_.parentElement){var i=this.fullscreenElement_.parentElement;i.insertBefore(this.fullscreenWrapper_,this.fullscreenElement_),i.removeChild(this.fullscreenElement_)}this.fullscreenWrapper_.insertBefore(this.fullscreenElement_,this.fullscreenWrapper_.firstChild),this.fullscreenElementCachedStyle_=this.fullscreenElement_.getAttribute("style");var r=this;return function(){if(r.fullscreenElement_){var e=["position: absolute","top: 0","left: 0","width: "+Math.max(screen.width,screen.height)+"px","height: "+Math.min(screen.height,screen.width)+"px","border: 0","margin: 0","padding: 0"];r.fullscreenElement_.setAttribute("style",e.join("; ")+";")}}(),this.fullscreenWrapper_},ve.prototype.removeFullscreenWrapper=function(){if(this.fullscreenElement_){var e=this.fullscreenElement_;this.fullscreenElementCachedStyle_?e.setAttribute("style",this.fullscreenElementCachedStyle_):e.removeAttribute("style"),this.fullscreenElement_=null,this.fullscreenElementCachedStyle_=null;var t=this.fullscreenWrapper_.parentElement;return this.fullscreenWrapper_.removeChild(e),this.originalParent_===t?t.insertBefore(e,this.fullscreenWrapper_):this.originalParent_&&this.originalParent_.appendChild(e),t.removeChild(this.fullscreenWrapper_),e}},ve.prototype.requestPresent=function(e){var t=this.isPresenting,i=this;return e instanceof Array||(x("VRDisplay.prototype.requestPresent with non-array argument","an array of VRLayers as the first argument"),e=[e]),new Promise(function(r,s){if(i.capabilities.canPresent)if(0==e.length||e.length>i.capabilities.maxLayers)s(new Error("Invalid number of layers."));else{var n=e[0];if(n.source){var a=n.leftBounds||ue,A=n.rightBounds||pe;if(t){var h=i.layer_;h.source!==n.source&&(h.source=n.source);for(var c=0;c<4;c++)h.leftBounds[c]=a[c],h.rightBounds[c]=A[c];return i.wrapForFullscreen(i.layer_.source),i.updatePresent_(),void r()}if(i.layer_={predistorted:n.predistorted,source:n.source,leftBounds:a.slice(0),rightBounds:A.slice(0)},i.waitingForPresent_=!1,i.layer_&&i.layer_.source){var d=i.wrapForFullscreen(i.layer_.source);i.addFullscreenListeners_(d,function(){var e=document.fullscreenElement||document.webkitFullscreenElement||document.mozFullScreenElement||document.msFullscreenElement;i.isPresenting=d===e,i.isPresenting?(screen.orientation&&screen.orientation.lock&&screen.orientation.lock("landscape-primary").catch(function(e){console.error("screen.orientation.lock() failed due to",e.message)}),i.waitingForPresent_=!1,i.beginPresent_(),r()):(screen.orientation&&screen.orientation.unlock&&screen.orientation.unlock(),i.removeFullscreenWrapper(),i.disableWakeLock(),i.endPresent_(),i.removeFullscreenListeners_()),i.fireVRDisplayPresentChange_()},function(){i.waitingForPresent_&&(i.removeFullscreenWrapper(),i.removeFullscreenListeners_(),i.disableWakeLock(),i.waitingForPresent_=!1,i.isPresenting=!1,s(new Error("Unable to present.")))}),function(e){if(l())return!1;if(e.requestFullscreen)e.requestFullscreen();else if(e.webkitRequestFullscreen)e.webkitRequestFullscreen();else if(e.mozRequestFullScreen)e.mozRequestFullScreen();else{if(!e.msRequestFullscreen)return!1;e.msRequestFullscreen()}return!0}(d)?(i.enableWakeLock(),i.waitingForPresent_=!0):(o()||l())&&(i.enableWakeLock(),i.isPresenting=!0,i.beginPresent_(),i.fireVRDisplayPresentChange_(),r())}i.waitingForPresent_||o()||(m(),s(new Error("Unable to present.")))}else r()}else s(new Error("VRDisplay is not capable of presenting."))})},ve.prototype.exitPresent=function(){var e=this.isPresenting,t=this;return this.isPresenting=!1,this.layer_=null,this.disableWakeLock(),new Promise(function(i,r){e?(!m()&&o()&&(t.endPresent_(),t.fireVRDisplayPresentChange_()),l()&&(t.removeFullscreenWrapper(),t.removeFullscreenListeners_(),t.endPresent_(),t.fireVRDisplayPresentChange_()),i()):r(new Error("Was not presenting to VRDisplay."))})},ve.prototype.getLayers=function(){return this.layer_?[this.layer_]:[]},ve.prototype.fireVRDisplayPresentChange_=function(){var e=new CustomEvent("vrdisplaypresentchange",{detail:{display:this}});window.dispatchEvent(e)},ve.prototype.fireVRDisplayConnect_=function(){var e=new CustomEvent("vrdisplayconnect",{detail:{display:this}});window.dispatchEvent(e)},ve.prototype.addFullscreenListeners_=function(e,t,i){this.removeFullscreenListeners_(),this.fullscreenEventTarget_=e,this.fullscreenChangeHandler_=t,this.fullscreenErrorHandler_=i,t&&(document.fullscreenEnabled?e.addEventListener("fullscreenchange",t,!1):document.webkitFullscreenEnabled?e.addEventListener("webkitfullscreenchange",t,!1):document.mozFullScreenEnabled?document.addEventListener("mozfullscreenchange",t,!1):document.msFullscreenEnabled&&e.addEventListener("msfullscreenchange",t,!1)),i&&(document.fullscreenEnabled?e.addEventListener("fullscreenerror",i,!1):document.webkitFullscreenEnabled?e.addEventListener("webkitfullscreenerror",i,!1):document.mozFullScreenEnabled?document.addEventListener("mozfullscreenerror",i,!1):document.msFullscreenEnabled&&e.addEventListener("msfullscreenerror",i,!1))},ve.prototype.removeFullscreenListeners_=function(){if(this.fullscreenEventTarget_){var e=this.fullscreenEventTarget_;if(this.fullscreenChangeHandler_){var t=this.fullscreenChangeHandler_;e.removeEventListener("fullscreenchange",t,!1),e.removeEventListener("webkitfullscreenchange",t,!1),document.removeEventListener("mozfullscreenchange",t,!1),e.removeEventListener("msfullscreenchange",t,!1)}if(this.fullscreenErrorHandler_){var i=this.fullscreenErrorHandler_;e.removeEventListener("fullscreenerror",i,!1),e.removeEventListener("webkitfullscreenerror",i,!1),document.removeEventListener("mozfullscreenerror",i,!1),e.removeEventListener("msfullscreenerror",i,!1)}this.fullscreenEventTarget_=null,this.fullscreenChangeHandler_=null,this.fullscreenErrorHandler_=null}},ve.prototype.enableWakeLock=function(){this.wakelock_&&this.wakelock_.enable()},ve.prototype.disableWakeLock=function(){this.wakelock_&&this.wakelock_.disable()},ve.prototype.beginPresent_=function(){},ve.prototype.endPresent_=function(){},ve.prototype.submitFrame=function(e){},ve.prototype.getEyeParameters=function(e){return null};var we={ADDITIONAL_VIEWERS:[],DEFAULT_VIEWER:"",MOBILE_WAKE_LOCK:!0,DEBUG:!1,DPDB_URL:"https://dpdb.webvr.rocks/dpdb.json",K_FILTER:.98,PREDICTION_TIME_S:.04,CARDBOARD_UI_DISABLED:!1,ROTATE_INSTRUCTIONS_DISABLED:!1,YAW_ONLY:!1,BUFFER_SCALE:.5,DIRTY_SUBMIT_FRAME_BINDINGS:!1},ye={LEFT:"left",RIGHT:"right"};function be(e){var t=y({},we);e=y(t,e||{}),ve.call(this,{wakelock:e.MOBILE_WAKE_LOCK}),this.config=e,this.displayName="Cardboard VRDisplay",this.capabilities=new ge({hasPosition:!1,hasOrientation:!0,hasExternalDisplay:!1,canPresent:!0,maxLayers:1}),this.stageParameters=null,this.bufferScale_=this.config.BUFFER_SCALE,this.poseSensor_=new se(this.config),this.distorter_=null,this.cardboardUI_=null,this.dpdb_=new Y(this.config.DPDB_URL,this.onDeviceParamsUpdated_.bind(this)),this.deviceInfo_=new W(this.dpdb_.getDeviceParams(),e.ADDITIONAL_VIEWERS),this.viewerSelector_=new le(e.DEFAULT_VIEWER),this.viewerSelector_.onChange(this.onViewerChanged_.bind(this)),this.deviceInfo_.setViewer(this.viewerSelector_.getCurrentViewer()),this.config.ROTATE_INSTRUCTIONS_DISABLED||(this.rotateInstructions_=new ne),o()&&window.addEventListener("resize",this.onResize_.bind(this))}return be.prototype=Object.create(ve.prototype),be.prototype._getPose=function(){return{position:null,orientation:this.poseSensor_.getOrientation(),linearVelocity:null,linearAcceleration:null,angularVelocity:null,angularAcceleration:null}},be.prototype._resetPose=function(){this.poseSensor_.resetPose&&this.poseSensor_.resetPose()},be.prototype._getFieldOfView=function(e){var t;if(e==ye.LEFT)t=this.deviceInfo_.getFieldOfViewLeftEye();else{if(e!=ye.RIGHT)return console.error("Invalid eye provided: %s",e),null;t=this.deviceInfo_.getFieldOfViewRightEye()}return t},be.prototype._getEyeOffset=function(e){var t;if(e==ye.LEFT)t=[.5*-this.deviceInfo_.viewer.interLensDistance,0,0];else{if(e!=ye.RIGHT)return console.error("Invalid eye provided: %s",e),null;t=[.5*this.deviceInfo_.viewer.interLensDistance,0,0]}return t},be.prototype.getEyeParameters=function(e){var t=this._getEyeOffset(e),i=this._getFieldOfView(e),r={offset:t,renderWidth:.5*this.deviceInfo_.device.width*this.bufferScale_,renderHeight:this.deviceInfo_.device.height*this.bufferScale_};return Object.defineProperty(r,"fieldOfView",{enumerable:!0,get:function(){return x("VRFieldOfView","VRFrameData's projection matrices"),i}}),r},be.prototype.onDeviceParamsUpdated_=function(e){this.config.DEBUG&&console.log("DPDB reported that device params were updated."),this.deviceInfo_.updateDeviceParams(e),this.distorter_&&this.distorter_.updateDeviceInfo(this.deviceInfo_)},be.prototype.updateBounds_=function(){this.layer_&&this.distorter_&&(this.layer_.leftBounds||this.layer_.rightBounds)&&this.distorter_.setTextureBounds(this.layer_.leftBounds,this.layer_.rightBounds)},be.prototype.beginPresent_=function(){var e=this.layer_.source.getContext("webgl");e||(e=this.layer_.source.getContext("experimental-webgl")),e||(e=this.layer_.source.getContext("webgl2")),e&&(this.layer_.predistorted?this.config.CARDBOARD_UI_DISABLED||(e.canvas.width=p()*this.bufferScale_,e.canvas.height=f()*this.bufferScale_,this.cardboardUI_=new I(e)):(this.config.CARDBOARD_UI_DISABLED||(this.cardboardUI_=new I(e)),this.distorter_=new T(e,this.cardboardUI_,this.config.BUFFER_SCALE,this.config.DIRTY_SUBMIT_FRAME_BINDINGS),this.distorter_.updateDeviceInfo(this.deviceInfo_)),this.cardboardUI_&&this.cardboardUI_.listen(function(e){this.viewerSelector_.show(this.layer_.source.parentElement),e.stopPropagation(),e.preventDefault()}.bind(this),function(e){this.exitPresent(),e.stopPropagation(),e.preventDefault()}.bind(this)),this.rotateInstructions_&&(u()&&w()?this.rotateInstructions_.showTemporarily(3e3,this.layer_.source.parentElement):this.rotateInstructions_.update()),this.orientationHandler=this.onOrientationChange_.bind(this),window.addEventListener("orientationchange",this.orientationHandler),this.vrdisplaypresentchangeHandler=this.updateBounds_.bind(this),window.addEventListener("vrdisplaypresentchange",this.vrdisplaypresentchangeHandler),this.fireVRDisplayDeviceParamsChange_())},be.prototype.endPresent_=function(){this.distorter_&&(this.distorter_.destroy(),this.distorter_=null),this.cardboardUI_&&(this.cardboardUI_.destroy(),this.cardboardUI_=null),this.rotateInstructions_&&this.rotateInstructions_.hide(),this.viewerSelector_.hide(),window.removeEventListener("orientationchange",this.orientationHandler),window.removeEventListener("vrdisplaypresentchange",this.vrdisplaypresentchangeHandler)},be.prototype.updatePresent_=function(){this.endPresent_(),this.beginPresent_()},be.prototype.submitFrame=function(e){if(this.distorter_)this.updateBounds_(),this.distorter_.submitFrame();else if(this.cardboardUI_&&this.layer_){var t=this.layer_.source.getContext("webgl").canvas;t.width==this.lastWidth&&t.height==this.lastHeight||this.cardboardUI_.onResize(),this.lastWidth=t.width,this.lastHeight=t.height,this.cardboardUI_.render()}},be.prototype.onOrientationChange_=function(e){this.viewerSelector_.hide(),this.rotateInstructions_&&this.rotateInstructions_.update(),this.onResize_()},be.prototype.onResize_=function(e){if(this.layer_){var t=this.layer_.source.getContext("webgl");t.canvas.setAttribute("style",["position: absolute","top: 0","left: 0","width: 100vw","height: 100vh","border: 0","margin: 0","padding: 0px","box-sizing: content-box"].join("; ")+";"),b(t.canvas)}},be.prototype.onViewerChanged_=function(e){this.deviceInfo_.setViewer(e),this.distorter_&&this.distorter_.updateDeviceInfo(this.deviceInfo_),this.fireVRDisplayDeviceParamsChange_()},be.prototype.fireVRDisplayDeviceParamsChange_=function(){var e=new CustomEvent("vrdisplaydeviceparamschange",{detail:{vrdisplay:this,deviceInfo:this.deviceInfo_}});window.dispatchEvent(e)},be.VRFrameData=function(){this.leftProjectionMatrix=new Float32Array(16),this.leftViewMatrix=new Float32Array(16),this.rightProjectionMatrix=new Float32Array(16),this.rightViewMatrix=new Float32Array(16),this.pose=null},be.VRDisplay=ve,be}()}(De={exports:{}},De.exports),De.exports),Le=(Pe=Ie)&&Pe.__esModule&&Object.prototype.hasOwnProperty.call(Pe,"default")?Pe.default:Pe;class Oe extends i{constructor(e){super(),this.global=e,this.onWindowResize=this.onWindowResize.bind(this),this.global.window.addEventListener("resize",this.onWindowResize),this.environmentBlendMode="opaque"}onBaseLayerSet(e,t){throw new Error("Not implemented")}isSessionSupported(e){throw new Error("Not implemented")}isFeatureSupported(e){throw new Error("Not implemented")}async requestSession(e,t){throw new Error("Not implemented")}requestAnimationFrame(e){throw new Error("Not implemented")}onFrameStart(e){throw new Error("Not implemented")}onFrameEnd(e){throw new Error("Not implemented")}doesSessionSupportReferenceSpace(e,t){throw new Error("Not implemented")}requestStageBounds(){throw new Error("Not implemented")}async requestFrameOfReferenceTransform(e,t){}cancelAnimationFrame(e){throw new Error("Not implemented")}endSession(e){throw new Error("Not implemented")}getViewport(e,t,i,r){throw new Error("Not implemented")}getProjectionMatrix(e){throw new Error("Not implemented")}getBasePoseMatrix(){throw new Error("Not implemented")}getBaseViewMatrix(e){throw new Error("Not implemented")}getInputSources(){throw new Error("Not implemented")}getInputPose(e,t,i){throw new Error("Not implemented")}onWindowResize(){this.onWindowResize()}}let Ne={mapping:"xr-standard",profiles:["oculus-go","generic-trigger-touchpad"],buttons:{length:3,0:1,1:null,2:0},gripTransform:{orientation:[.11*Math.PI,0,0,1]}},Qe={mapping:"xr-standard",displayProfiles:{"Oculus Quest":["oculus-touch-v2","oculus-touch","generic-trigger-squeeze-thumbstick"]},profiles:["oculus-touch","generic-trigger-squeeze-thumbstick"],axes:{length:4,0:null,1:null,2:0,3:1},buttons:{length:7,0:1,1:2,2:null,3:0,4:3,5:4,6:null},gripTransform:{position:[0,-.02,.04,1],orientation:[.11*Math.PI,0,0,1]}},Ge={mapping:"xr-standard",profiles:["htc-vive","generic-trigger-squeeze-touchpad"],displayProfiles:{"HTC Vive":["htc-vive","generic-trigger-squeeze-touchpad"],"HTC Vive DVT":["htc-vive","generic-trigger-squeeze-touchpad"],"Valve Index":["valve-index","generic-trigger-squeeze-touchpad-thumbstick"]},buttons:{length:3,0:1,1:2,2:0},gripTransform:{position:[0,0,.05,1]},targetRayTransform:{orientation:[-.08*Math.PI,0,0,1]},userAgentOverrides:{Firefox:{axes:{invert:[1,3]}}}},ke={mapping:"xr-standard",profiles:["samsung-gearvr","generic-trigger-touchpad"],buttons:{length:3,0:1,1:null,2:0},gripTransform:{orientation:[.11*Math.PI,0,0,1]}},ze={mapping:"xr-standard",profiles:["samsung-odyssey","microsoft-mixed-reality","generic-trigger-squeeze-touchpad-thumbstick"],buttons:{length:4,0:1,1:0,2:2,3:4},gripTransform:{position:[0,-.02,.04,1],orientation:[.11*Math.PI,0,0,1]}},Ve={mapping:"xr-standard",profiles:["microsoft-mixed-reality","generic-trigger-squeeze-touchpad-thumbstick"],buttons:{length:4,0:1,1:0,2:2,3:4},gripTransform:{position:[0,-.02,.04,1],orientation:[.11*Math.PI,0,0,1]}},Ue={"Daydream Controller":{mapping:"",profiles:["google-daydream","generic-trigger-touchpad"],buttons:{length:3,0:null,1:null,2:0}},"Gear VR Controller":ke,"HTC Vive Focus Controller":{mapping:"xr-standard",profiles:["htc-vive-focus","generic-trigger-touchpad"],buttons:{length:3,0:1,1:null,2:0}},"Oculus Go Controller":Ne,"Oculus Touch (Right)":Qe,"Oculus Touch (Left)":Qe,"OpenVR Gamepad":Ge,"Spatial Controller (Spatial Interaction Source) 045E-065A":Ve,"Spatial Controller (Spatial Interaction Source) 045E-065D":ze,"Windows Mixed Reality (Right)":Ve,"Windows Mixed Reality (Left)":Ve};const He=f(.155,-.465,-.15),Xe=f(-.155,-.465,-.15),We=f(0,0,-.25),je=f(0,0,.05),qe=f(-.08,.14,.08),Ye=.4,Ze=.4,Je=.61,Ke=.175,$e=.12,et=.87,tt=180/Math.PI;class it{constructor(){this.hand="right",this.headElbowOffset=He,this.controllerQ=M(),this.lastControllerQ=M(),this.headQ=M(),this.headPos=u(),this.elbowPos=u(),this.wristPos=u(),this.time=null,this.lastTime=null,this.rootQ=M(),this.position=u()}setHandedness(e){this.hand!=e&&(this.hand=e,"left"==this.hand?this.headElbowOffset=Xe:this.headElbowOffset=He)}update(e,t){this.time=X(),e&&(B(this.lastControllerQ,this.controllerQ),B(this.controllerQ,e)),t&&(h(this.headPos,t),c(this.headQ,t));let i=this.getHeadYawOrientation_(),r=this.quatAngle_(this.lastControllerQ,this.controllerQ);r/((this.time-this.lastTime)/1e3)>Je?_(this.rootQ,this.rootQ,i,Math.min(r/Ke,1)):B(this.rootQ,i);let s=f(0,0,-1);E(s,s,this.controllerQ);let n=y(s,[0,1,0]),a=this.clamp_((n-$e)/et,0,1),o=R(this.rootQ);F(o,o),x(o,o,this.controllerQ);let l=this.elbowPos;m(l,this.headPos),g(l,l,this.headElbowOffset);let A=p(qe);v(A,A,a),g(l,l,A);let d=this.quatAngle_(o,M())*tt,u=(1-Math.pow(d/180,4))*(Ye+(1-Ye)*a*Ze),w=M();_(w,w,o,u);let b=F(M(),w),S=R(o);x(S,S,b);let T=this.wristPos;m(T,je),E(T,T,w),g(T,T,We),E(T,T,S),g(T,T,l);let C=p(qe);v(C,C,a),g(this.position,this.wristPos,C),E(this.position,this.position,this.rootQ),this.lastTime=this.time}getPosition(){return this.position}getHeadYawOrientation_(){let e=u();return function(e,t,i){function r(e,t,i){return e<t?t:e>i?i:e}var s=t[0]*t[0],n=t[1]*t[1],a=t[2]*t[2],o=t[3]*t[3];if("XYZ"===i)e[0]=Math.atan2(2*(t[0]*t[3]-t[1]*t[2]),o-s-n+a),e[1]=Math.asin(r(2*(t[0]*t[2]+t[1]*t[3]),-1,1)),e[2]=Math.atan2(2*(t[2]*t[3]-t[0]*t[1]),o+s-n-a);else if("YXZ"===i)e[0]=Math.asin(r(2*(t[0]*t[3]-t[1]*t[2]),-1,1)),e[1]=Math.atan2(2*(t[0]*t[2]+t[1]*t[3]),o-s-n+a),e[2]=Math.atan2(2*(t[0]*t[1]+t[2]*t[3]),o-s+n-a);else if("ZXY"===i)e[0]=Math.asin(r(2*(t[0]*t[3]+t[1]*t[2]),-1,1)),e[1]=Math.atan2(2*(t[1]*t[3]-t[2]*t[0]),o-s-n+a),e[2]=Math.atan2(2*(t[2]*t[3]-t[0]*t[1]),o-s+n-a);else if("ZYX"===i)e[0]=Math.atan2(2*(t[0]*t[3]+t[2]*t[1]),o-s-n+a),e[1]=Math.asin(r(2*(t[1]*t[3]-t[0]*t[2]),-1,1)),e[2]=Math.atan2(2*(t[0]*t[1]+t[2]*t[3]),o+s-n-a);else if("YZX"===i)e[0]=Math.atan2(2*(t[0]*t[3]-t[2]*t[1]),o-s+n-a),e[1]=Math.atan2(2*(t[1]*t[3]-t[0]*t[2]),o+s-n-a),e[2]=Math.asin(r(2*(t[0]*t[1]+t[2]*t[3]),-1,1));else{if("XZY"!==i)return void console.log("No order given for quaternion to euler conversion.");e[0]=Math.atan2(2*(t[0]*t[3]+t[1]*t[2]),o-s+n-a),e[1]=Math.atan2(2*(t[0]*t[2]+t[1]*t[3]),o+s-n-a),e[2]=Math.asin(r(2*(t[2]*t[3]-t[0]*t[1]),-1,1))}}(e,this.headQ,"YXZ"),function(e,t,i,r){let s=.5*Math.PI/180;t*=s,i*=s,r*=s;let n=Math.sin(t),a=Math.cos(t),o=Math.sin(i),l=Math.cos(i),A=Math.sin(r),h=Math.cos(r);return e[0]=n*l*h-a*o*A,e[1]=a*o*h+n*l*A,e[2]=a*l*A-n*o*h,e[3]=a*l*h+n*o*A,e}(M(),0,e[1]*tt,0)}clamp_(e,t,i){return Math.min(Math.max(e,t),i)}quatAngle_(e,t){let i=[0,0,-1],r=[0,0,-1];return E(i,i,e),E(r,r,t),function(e,t){let i=f(e[0],e[1],e[2]),r=f(t[0],t[1],t[2]);w(i,i),w(r,r);let s=y(i,r);return s>1?0:s<-1?Math.PI:Math.acos(s)}(i,r)}}const rt=Symbol("@@webxr-polyfill/XRRemappedGamepad"),st={pressed:!1,touched:!1,value:0};Object.freeze(st);class nt{constructor(e,t,i){if(i||(i={}),i.userAgentOverrides)for(let e in i.userAgentOverrides)if(navigator.userAgent.includes(e)){let t=i.userAgentOverrides[e];for(let e in t)e in i?Object.assign(i[e],t[e]):i[e]=t[e];break}let r=new Array(i.axes&&i.axes.length?i.axes.length:e.axes.length),s=new Array(i.buttons&&i.buttons.length?i.buttons.length:e.buttons.length),a=null;if(i.gripTransform){let e=i.gripTransform.orientation||[0,0,0,1];A(a=n(),C(e,e),i.gripTransform.position||[0,0,0])}let o=null;if(i.targetRayTransform){let e=i.targetRayTransform.orientation||[0,0,0,1];A(o=n(),C(e,e),i.targetRayTransform.position||[0,0,0])}let l=i.profiles;i.displayProfiles&&t.displayName in i.displayProfiles&&(l=i.displayProfiles[t.displayName]),this[rt]={gamepad:e,map:i,profiles:l||[e.id],mapping:i.mapping||e.mapping,axes:r,buttons:s,gripTransform:a,targetRayTransform:o},this._update()}_update(){let e=this[rt].gamepad,t=this[rt].map,i=this[rt].axes;for(let r=0;r<i.length;++r)t.axes&&r in t.axes?null===t.axes[r]?i[r]=0:i[r]=e.axes[t.axes[r]]:i[r]=e.axes[r];if(t.axes&&t.axes.invert)for(let e of t.axes.invert)e<i.length&&(i[e]*=-1);let r=this[rt].buttons;for(let i=0;i<r.length;++i)t.buttons&&i in t.buttons?null===t.buttons[i]?r[i]=st:r[i]=e.buttons[t.buttons[i]]:r[i]=e.buttons[i]}get id(){return""}get _profiles(){return this[rt].profiles}get index(){return-1}get connected(){return this[rt].gamepad.connected}get timestamp(){return this[rt].gamepad.timestamp}get mapping(){return this[rt].mapping}get axes(){return this[rt].axes}get buttons(){return this[rt].buttons}get hapticActuators(){return this[rt].gamepad.hapticActuators}}class at{constructor(e,t,i=0,r=-1){this.polyfill=e,this.display=t,this.nativeGamepad=null,this.gamepad=null,this.inputSource=new Se(this),this.lastPosition=u(),this.emulatedPosition=!1,this.basePoseMatrix=n(),this.outputMatrix=n(),this.primaryButtonIndex=i,this.primaryActionPressed=!1,this.primarySqueezeButtonIndex=r,this.primarySqueezeActionPressed=!1,this.handedness="",this.targetRayMode="gaze",this.armModel=null}get profiles(){return this.gamepad?this.gamepad._profiles:[]}updateFromGamepad(e){this.nativeGamepad!==e&&(this.nativeGamepad=e,this.gamepad=e?new nt(e,this.display,Ue[e.id]):null),this.handedness=""===e.hand?"none":e.hand,this.gamepad&&this.gamepad._update(),e.pose?(this.targetRayMode="tracked-pointer",this.emulatedPosition=!e.pose.hasPosition):""===e.hand&&(this.targetRayMode="gaze",this.emulatedPosition=!1)}updateBasePoseMatrix(){if(this.nativeGamepad&&this.nativeGamepad.pose){let e=this.nativeGamepad.pose,t=e.position,i=e.orientation;if(!t&&!i)return;t?(this.lastPosition[0]=t[0],this.lastPosition[1]=t[1],this.lastPosition[2]=t[2]):e.hasPosition?t=this.lastPosition:(this.armModel||(this.armModel=new it),this.armModel.setHandedness(this.nativeGamepad.hand),this.armModel.update(i,this.polyfill.getBasePoseMatrix()),t=this.armModel.getPosition()),A(this.basePoseMatrix,i,t)}else e=this.basePoseMatrix,t=this.polyfill.getBasePoseMatrix(),e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e[6]=t[6],e[7]=t[7],e[8]=t[8],e[9]=t[9],e[10]=t[10],e[11]=t[11],e[12]=t[12],e[13]=t[13],e[14]=t[14],e[15]=t[15];var e,t;return this.basePoseMatrix}getXRPose(e,t){switch(this.updateBasePoseMatrix(),t){case"target-ray":e._transformBasePoseMatrix(this.outputMatrix,this.basePoseMatrix),this.gamepad&&this.gamepad[rt].targetRayTransform&&l(this.outputMatrix,this.outputMatrix,this.gamepad[rt].targetRayTransform);break;case"grip":if(!this.nativeGamepad||!this.nativeGamepad.pose)return null;e._transformBasePoseMatrix(this.outputMatrix,this.basePoseMatrix),this.gamepad&&this.gamepad[rt].gripTransform&&l(this.outputMatrix,this.outputMatrix,this.gamepad[rt].gripTransform);break;default:return null}return e._adjustForOriginOffset(this.outputMatrix),new XRPose(new XRRigidTransform(this.outputMatrix),this.emulatedPosition)}}const ot=!1,lt={highRefreshRate:!0},At={oculus:1,openvr:1,"spatial controller (spatial interaction source)":1};let ht=0;class ct{constructor(e,t,i={}){if(this.mode=e,this.enabledFeatures=t,this.outputContext=null,this.immersive="immersive-vr"==e||"immersive-ar"==e,this.ended=null,this.baseLayer=null,this.id=++ht,this.modifiedCanvasLayer=!1,this.outputContext&&!ot){const e=i.renderContextType||"2d";this.renderContext=this.outputContext.canvas.getContext(e)}}}class dt extends Oe{constructor(e,t){const{canPresent:i}=t.capabilities;super(e),this.display=t,this.frame=new e.VRFrameData,this.sessions=new Map,this.immersiveSession=null,this.canPresent=i,this.baseModelMatrix=n(),this.gamepadInputSources={},this.tempVec3=new Float32Array(3),this.onVRDisplayPresentChange=this.onVRDisplayPresentChange.bind(this),e.window.addEventListener("vrdisplaypresentchange",this.onVRDisplayPresentChange),this.CAN_USE_GAMEPAD=e.navigator&&"getGamepads"in e.navigator,this.HAS_BITMAP_SUPPORT=Re(e)}get depthNear(){return this.display.depthNear}set depthNear(e){this.display.depthNear=e}get depthFar(){return this.display.depthFar}set depthFar(e){this.display.depthFar=e}onBaseLayerSet(e,t){const i=this.sessions.get(e),r=t.context.canvas;if(i.immersive){const e=this.display.getEyeParameters("left"),s=this.display.getEyeParameters("right");r.width=2*Math.max(e.renderWidth,s.renderWidth),r.height=Math.max(e.renderHeight,s.renderHeight),this.display.requestPresent([{source:r,attributes:lt}]).then(()=>{ot||this.global.document.body.contains(r)||(i.modifiedCanvasLayer=!0,this.global.document.body.appendChild(r),Be(r)),i.baseLayer=t})}else i.baseLayer=t}isSessionSupported(e){return"immersive-ar"!=e&&("immersive-vr"!=e||!1!==this.canPresent)}isFeatureSupported(e){switch(e){case"viewer":case"local":case"local-floor":return!0;case"bounded":case"unbounded":default:return!1}}async requestSession(e,t){if(!this.isSessionSupported(e))return Promise.reject();let i="immersive-vr"==e;if(i){const e=this.global.document.createElement("canvas");if(!ot){e.getContext("webgl")}await this.display.requestPresent([{source:e,attributes:lt}])}const r=new ct(e,t,{renderContextType:this.HAS_BITMAP_SUPPORT?"bitmaprenderer":"2d"});return this.sessions.set(r.id,r),i&&(this.immersiveSession=r,this.dispatchEvent("@@webxr-polyfill/vr-present-start",r.id)),Promise.resolve(r.id)}requestAnimationFrame(e){return this.display.requestAnimationFrame(e)}getPrimaryButtonIndex(e){let t=0,i=e.id.toLowerCase();for(let e in At)if(i.includes(e)){t=At[e];break}return Math.min(t,e.buttons.length-1)}onFrameStart(e,t){this.display.depthNear=t.depthNear,this.display.depthFar=t.depthFar,this.display.getFrameData(this.frame);const i=this.sessions.get(e);if(i.immersive&&this.CAN_USE_GAMEPAD){let e=this.gamepadInputSources;this.gamepadInputSources={};let t=this.global.navigator.getGamepads();for(let r=0;r<t.length;++r){let s=t[r];if(s&&s.displayId>0){let t=e[r];if(t||(t=new at(this,this.display,this.getPrimaryButtonIndex(s))),t.updateFromGamepad(s),this.gamepadInputSources[r]=t,-1!=t.primaryButtonIndex){let e=s.buttons[t.primaryButtonIndex].pressed;e&&!t.primaryActionPressed?this.dispatchEvent("@@webxr-polyfill/input-select-start",{sessionId:i.id,inputSource:t.inputSource}):!e&&t.primaryActionPressed&&this.dispatchEvent("@@webxr-polyfill/input-select-end",{sessionId:i.id,inputSource:t.inputSource}),t.primaryActionPressed=e}if(-1!=t.primarySqueezeButtonIndex){let e=s.buttons[t.primarySqueezeButtonIndex].pressed;e&&!t.primarySqueezeActionPressed?this.dispatchEvent("@@webxr-polyfill/input-squeeze-start",{sessionId:i.id,inputSource:t.inputSource}):!e&&t.primarySqueezeActionPressed&&this.dispatchEvent("@@webxr-polyfill/input-squeeze-end",{sessionId:i.id,inputSource:t.inputSource}),t.primarySqueezeActionPressed=e}}}}if(!ot&&!i.immersive&&i.baseLayer){const e=i.baseLayer.context.canvas;d(this.frame.leftProjectionMatrix,t.inlineVerticalFieldOfView,e.width/e.height,t.depthNear,t.depthFar)}}onFrameEnd(e){const t=this.sessions.get(e);if(!t.ended&&t.baseLayer){if(t.outputContext&&(!t.immersive||this.display.capabilities.hasExternalDisplay)){const e=t.immersive&&this.display.capabilities.hasExternalDisplay,i=t.baseLayer.context.canvas,r=e?i.width/2:i.width,s=i.height;if(!ot){const e=t.outputContext.canvas,n=e.width,a=e.height,o=t.renderContext;this.HAS_BITMAP_SUPPORT?i.transferToImageBitmap?o.transferFromImageBitmap(i.transferToImageBitmap()):this.global.createImageBitmap(i,0,0,r,s,{resizeWidth:n,resizeHeight:a}).then(e=>o.transferFromImageBitmap(e)):o.drawImage(i,0,0,r,s,0,0,n,a)}}t.immersive&&t.baseLayer&&this.display.submitFrame()}}cancelAnimationFrame(e){this.display.cancelAnimationFrame(e)}async endSession(e){const t=this.sessions.get(e);if(!t.ended)return t.immersive?this.display.exitPresent():void(t.ended=!0)}doesSessionSupportReferenceSpace(e,t){const i=this.sessions.get(e);return!i.ended&&i.enabledFeatures.has(t)}requestStageBounds(){if(this.display.stageParameters){const e=this.display.stageParameters.sizeX,t=this.display.stageParameters.sizeZ,i=[];return i.push(-e/2),i.push(-t/2),i.push(e/2),i.push(-t/2),i.push(e/2),i.push(t/2),i.push(-e/2),i.push(t/2),i}return null}async requestFrameOfReferenceTransform(e,t){return("local-floor"===e||"bounded-floor"===e)&&this.display.stageParameters&&this.display.stageParameters.sittingToStandingTransform?this.display.stageParameters.sittingToStandingTransform:null}getProjectionMatrix(e){if("left"===e)return this.frame.leftProjectionMatrix;if("right"===e)return this.frame.rightProjectionMatrix;if("none"===e)return this.frame.leftProjectionMatrix;throw new Error("eye must be of type 'left' or 'right'")}getViewport(e,t,i,r){const s=this.sessions.get(e),{width:n,height:a}=i.context.canvas;if(!s.immersive)return r.x=r.y=0,r.width=n,r.height=a,!0;if("left"===t||"none"===t)r.x=0;else{if("right"!==t)return!1;r.x=n/2}return r.y=0,r.width=n/2,r.height=a,!0}getBasePoseMatrix(){let{position:e,orientation:t}=this.frame.pose;return e||t?(e||((e=this.tempVec3)[0]=e[1]=e[2]=0),A(this.baseModelMatrix,t,e),this.baseModelMatrix):this.baseModelMatrix}getBaseViewMatrix(e){if("left"===e||"none"===e)return this.frame.leftViewMatrix;if("right"===e)return this.frame.rightViewMatrix;throw new Error("eye must be of type 'left' or 'right'")}getInputSources(){let e=[];for(let t in this.gamepadInputSources)e.push(this.gamepadInputSources[t].inputSource);return e}getInputPose(e,t,i){if(!t)return null;for(let r in this.gamepadInputSources){let s=this.gamepadInputSources[r];if(s.inputSource===e)return s.getXRPose(t,i)}return null}onWindowResize(){}onVRDisplayPresentChange(e){this.display.isPresenting||this.sessions.forEach(e=>{if(e.immersive&&!e.ended){if(e.modifiedCanvasLayer){const t=e.baseLayer.context.canvas;document.body.removeChild(t),t.setAttribute("style","")}this.immersiveSession===e&&(this.immersiveSession=null),this.dispatchEvent("@@webxr-polyfill/vr-present-end",e.id)}})}}const ut=!1;let pt=0;class ft{constructor(e,t){this.mode=e,this.enabledFeatures=t,this.ended=null,this.baseLayer=null,this.id=++pt}}const mt=async function(e,t){if(t.webvr){let t=await async function(e){let t=null;if("getVRDisplays"in e.navigator)try{const i=await e.navigator.getVRDisplays();i&&i.length&&(t=new dt(e,i[0]))}catch(e){}return t}(e);if(t)return t}let i=(e=>{var t=!1;return Te=e.navigator.userAgent||e.navigator.vendor||e.opera,(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows 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Float32Array(16),this.leftProjectionMatrix=new Float32Array(16),this.pose=null}),new class extends dt{constructor(e,t){const i=new Le(t||{});super(e,i),this.display=i,this.frame={rightViewMatrix:new Float32Array(16),leftViewMatrix:new Float32Array(16),rightProjectionMatrix:new Float32Array(16),leftProjectionMatrix:new Float32Array(16),pose:null,timestamp:null}}}(e,t.cardboardConfig)):new class extends Oe{constructor(e){super(e),this.sessions=new Map,this.projectionMatrix=n(),this.identityMatrix=n()}onBaseLayerSet(e,t){this.sessions.get(e).baseLayer=t}isSessionSupported(e){return"inline"==e}isFeatureSupported(e){switch(e){case"viewer":return!0;default:return!1}}async requestSession(e,t){if(!this.isSessionSupported(e))return Promise.reject();const i=new ft(e,t);return this.sessions.set(i.id,i),Promise.resolve(i.id)}requestAnimationFrame(e){return window.requestAnimationFrame(e)}cancelAnimationFrame(e){window.cancelAnimationFrame(e)}onFrameStart(e,t){if(ut)return;const i=this.sessions.get(e);if(i.baseLayer){const e=i.baseLayer.context.canvas;d(this.projectionMatrix,t.inlineVerticalFieldOfView,e.width/e.height,t.depthNear,t.depthFar)}}onFrameEnd(e){}async endSession(e){this.sessions.get(e).ended=!0}doesSessionSupportReferenceSpace(e,t){const i=this.sessions.get(e);return!i.ended&&i.enabledFeatures.has(t)}requestStageBounds(){return null}async requestFrameOfReferenceTransform(e,t){return null}getProjectionMatrix(e){return this.projectionMatrix}getViewport(e,t,i,r){const{width:s,height:n}=i.context.canvas;return this.sessions.get(e),r.x=r.y=0,r.width=s,r.height=n,!0}getBasePoseMatrix(){return this.identityMatrix}getBaseViewMatrix(e){return this.identityMatrix}getInputSources(){return[]}getInputPose(e,t,i){return null}onWindowResize(){}}(e)},gt={global:e,webvr:!0,cardboard:!0,cardboardConfig:null,allowCardboardOnDesktop:!1},vt=["navigator","HTMLCanvasElement","WebGLRenderingContext"];return class{constructor(e={}){this.config=Object.freeze(Object.assign({},gt,e)),this.global=this.config.global,this.nativeWebXR="xr"in this.global.navigator,this.injected=!1,this.nativeWebXR?this._injectCompatibilityShims(this.global):this._injectPolyfill(this.global)}_injectPolyfill(e){if(!vt.every(t=>!!e[t]))throw new Error(`Global must have the following attributes : ${vt}`);for(const t of Object.keys(xe))void 0!==e[t]?console.warn(`${t} already defined on global.`):e[t]=xe[t];_e(e.WebGLRenderingContext)&&(Fe(e.HTMLCanvasElement),e.OffscreenCanvas&&Fe(e.OffscreenCanvas),e.WebGL2RenderingContext&&_e(e.WebGL2RenderingContext)),this.injected=!0,this._patchNavigatorXR()}_patchNavigatorXR(){let e=mt(this.global,this.config);this.xr=new xe.XR(e),Object.defineProperty(this.global.navigator,"xr",{value:this.xr,configurable:!0})}_injectCompatibilityShims(e){if(!vt.every(t=>!!e[t]))throw new Error(`Global must have the following attributes : ${vt}`);if(e.navigator.xr&&"supportsSession"in e.navigator.xr&&!("isSessionSupported"in e.navigator.xr)){let t=e.navigator.xr.supportsSession;e.navigator.xr.isSessionSupported=function(e){return t.call(this,e).then(()=>!0).catch(()=>!1)},e.navigator.xr.supportsSession=function(e){return console.warn("navigator.xr.supportsSession() is deprecated. Please call navigator.xr.isSessionSupported() instead and check the boolean value returned when the promise resolves."),t.call(this,e)}}}}});